Since 1952
America's Oldest Speed Shop ®
Speedway Motors Bill Smith
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Holley Carb products have been the undisputed leader in fuel systems for over 100 years. Holley carburetors have powered every NASCAR, Sprint Cup team, and every NHRA Pro Stock champion for four decades. Holley's carb products include performance fuel pumps, fuel injection, intake manifolds, cylinder heads & engine dress-up products for street performance, race and marine applications.

"Holley" Page 2 of 4

  • Holley 0-7448 350 CFM Gas 2 Barrel Carburetor
    Holley 0-7448 350 CFM Gas 2 Barrel Carburetor
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    Holley Model 2300 two barrel carburetors are great for improving or updating many stock Chrysler and Ford car and truck applications. The 350 CFM 2 barrel carburetor is ideal for small blocks. It features a manual choke, center hung float bowl, universal throttle lever, power valve blow-out protection, blue non-stick gaskets, and Fort A/T kickdown.

    • Power Valve Blow-out Protection for trouble-free operation
    • Manual choke
    • Center Hung Float bowl
    • Factory set 30cc accelerator pump for excellent off-idle performance
    • Ford A/T kickdown, does not work with A.O.D. transmissions
    • Dichromate finish for a classic, period look that will last

    Holley 350 CFM 2 Barrel Carburetor Installation Instructions (PDF)

  • Holley 0-76750HB 750 CFM Ultra Double Pumper 4 Barrel Carb
    Holley 0-76750HB 750 CFM Ultra Double Pumper 4 Barrel Carb
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    The new Ultra Double Pumper four barrel carburetors have an enhanced fuel curve for optimum performance, with many more features such as aluminum construction; Hard Core Gray™ finish w/ black anodized billet aluminum metering blocks and base plate; 4 corner idle for precise idle control; mechanical secondaries for great performance; clear fuel level sight plugs for easy, no mess fuel level adjustments; Ford automatic transmission kickdown for use on popular Ford transmissions; four vacuum ports for all necessary vacuum accessories; and for the first time on a Double Pumper, factory pre–set electric choke for easy, fast cold start–ups.

    • ULTRA light – aluminum construction for 36% weight savings
    • ULTRA strong – billet metering blocks & base plates
    • ULTRA cool – Hard Core Gray™ w/ black anodized billet aluminum metering blocks and base plate
    • ULTRA easy – built in sight window for simple float adjustments
    • ULTRA fast – high performance fuel curves

    Holley Double Pumper Carburetor Installation Instructions (PDF)

  • Holley 0-80787-1 Keith Dorton HP 350 CFM Gas 2 Barrel Carburetor
    Holley 0-80787-1 Keith Dorton HP 350 CFM Gas 2 Barrel Carburetor
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                This is the top of the line two barrel carb.  The famed carb guru, Keith Dorton, designed and massaged this two barrel carb to give you maximum performance.  Race ready features include: 

     

    • Purpose built for short track racing.
    • No choke provisions provides smoother airflow.
    • No vacuum or PCV holes.
    • 30 cc accel. pump for smoother "off the corner" use.
    • Power valve blowout protection
    • Button head throttle plate screws are loctited.
    • Screw-in air bleeds for precise tuning.
    • HP metering block for strength.
    • Factory flowed to insure quality.
    • Reusable fuel bowl screw gaskets.
    • Throttle shaft hole plugged to eliminate leaks.
    • Stainless steel throttle plates with air bypass holes for smooth idle.
    • All bore, throttle plate, venturi & critical sizes are to factory spec.
    • Welded throttle lever and shaft.
    Holley 2 Barrel Carb Installation Instructions (PDF)
  • Holley 37-720 Renew 4 Barrel Carb Rebuild Kit, Model 4160, 390 CFM
    Holley 37-720 Renew 4 Barrel Carb Rebuild Kit, Model 4160, 390 CFM
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    Rebuild kit for Holley Model 4160 four barrel 390 CFM carburetor.

    427-37720 Instructions (PDF)

  • Holley 0-80570 Avenger 570 CFM 4 Barrel Carburetor, Electric Choke
    Holley 0-80570 Avenger 570 CFM 4 Barrel Carburetor, Electric Choke
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    The Holley Street Avenger Model 4150 four barrel carb is the ultimate vacuum secondary street performance upgrade. This four barrel carb is street ready right out of the box and features a calibrated electric choke, air and fuel adjustments and built in fuel filters. There are clear sights for easy float adjustments, adjustable vacuum secondaries and four vacuum ports. Plus it has a million mile power valve, is 100% wet flow tested and includes fittings.

    • No Trouble quick change vacuum secondaries
    • Up to 6% more acceleration or 5% better fuel economy with simple spring change (springs included)
    • Vacuum secondaries allow use on wide variety of vehicles
    • Tuneable fuel metering system
    • Dual feed fuel inlet
    • 1 timed (spark) port, 2 full vacuum, and 1 PCV port
    • Ford A/T kickdown, does not work with A.O.D. transmissions
    • Calibrated for monster low-end torque, awesome acceleration, & unmatched top-end horsepower
    • Bolt on & go design
    • Electric choke

    Holley Carb Installation Instructions (PDF)

  • Holley Wedged Float for Secondary Bowl
    $23.99
    $34.99
    Holley Wedged Float for Secondary Bowl
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                Made specially for the circle track carb. The fuel rides up the wedge and does not shut the fuel off sooner than it should.
            
  • Holley 10829-5 4150 Metering Block Gasket
    Holley 10829-5 4150 Metering Block Gasket
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                For Holley double pumper carbs. Package of five gaskets.
            
  • Holley 0-80804HB Ultra HP Gas 4 Barrel Carburetor, 850 CFM
    Holley 0-80804HB Ultra HP Gas 4 Barrel Carburetor, 850 CFM
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    Holley HP™ four barrel Carburetors have been the standard in racing carburetors for nearly two decades. So how do you make them better? You make them 38% lighter, increase the fuel capacity by 20% and add 30 other new features! They're available in an all–new Hard Core Gray™ hard coat anodized finish with Black™ billet for superior corrosion protection.

    New Features! (LINK)

    Note: Fuel inlets are spaced 9.75" on center which will require a lengthened fuel line / fuel log arrangement. Fuel bowl inlets feature -8 AN O-ring port fittings to allow for a large variety of plumbing options. Fuel bowl can be plumbed from either side.

    Holley 850 CFM 4 Barrel Carburetor Installation Instructions (PDF)

  • Holley 12-704 Big Port Adjustable Fuel Pressure Regulator, 4.5-9 PSI
    Holley 12-704 Big Port Adjustable Fuel Pressure Regulator, 4.5-9 PSI
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    This universal fuel regulator regulates pressure from 4-1/2 to 9 PSI. This fuel pump regulator has one 1/2" NPT inlet and two 1/2" NPT outlet ports. Works with low pressure carbureted systems and as an alcohol fuel regulator.

    • Includes mounting hardware and AN style fittings
    • Alcohol compatible
    • .437" (7/16") restriction

    425-12704 Instructions (PDF)

  • Holley 12-805 Red Electric Fuel Pump Check Valve Rebuild Kit
    Holley 12-805 Red Electric Fuel Pump Check Valve Rebuild Kit
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    For servicing of Holley Red electric fuel pump check valve and filter screen.

    425-12805 Instructions (PDF)

  • Holley 12-327-11 Small Block Chevy Racing Mechanical Fuel Pump-110 GPH
    Holley 12-327-11 Small Block Chevy Racing Mechanical Fuel Pump-110 GPH
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    • Competition 110 GPH 
    • High output performance
    • 6-1/2 - 8 PSI
    • Heavy duty construction for continuous high RPM performance
    • Six high flow valves ensure adequate and continuous fuel flow
    • Repair kits are readily available to replace critical components
    • Features an extra beefy rocker arm casting to help withstand severe race usage.
    • 3/8" NPT inlet/outlet
    • Gasoline only
  • Holley 34-504 Chrome Accelerator Pump Cover, 30cc
    Holley 34-504 Chrome Accelerator Pump Cover, 30cc
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    Chrome plated accelerator pump covers for Holley carburetors with 30cc accelerator pumps. Includes screws.

  • Holley 0-80770 Avenger 770 CFM 4 Barrel Carburetor, Electric Choke
    Holley 0-80770 Avenger 770 CFM 4 Barrel Carburetor, Electric Choke
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    The Holley Street Avenger Model 4150 carb is the ultimate vacuum secondary street performance upgrade. This carb is street ready right out of the box and features a calibrated electric choke, air and fuel adjustments and built-in fuel filters.  There are clear sights for easy float adjustments, adjustable vacuum secondaries and four vacuum ports. Plus it has a million mile power valve, is 100% wet flow tested and includes fittings.

    • No Trouble quick change vacuum secondaries - up to 6% more acceleration or 5% better fuel economy with simple spring change (springs included) 
    • Vacuum secondaries allow use on wide variety of vehicles
    • Tuneable fuel metering system
    • Dual feed fuel inlet
    • 1 timed (spark) port, 2 full vacuum, and 1 PCV port
    • Ford A/T kickdown, does not work with A.O.D. transmissions
    • Calibrated for monster low-end torque, awesome acceleration, & unmatched top-end horsepower
    • Bolt on & go design
    • Electric choke

    Holley 770 CFM 4 Barrel Carburetor Installation Instructions (PDF)

  • Holley 0-80802HB Ultra HP Gas 650 CFM 4 Barrel Carburetor
    Holley 0-80802HB Ultra HP Gas 650 CFM 4 Barrel Carburetor
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    Holley HP™ Carburetors have been the standard in racing four barrel carburetors for nearly two decades. So how do you make them better? You make them 38% lighter, increase the fuel capacity by 20% and add 30 other new features! They're available in an all–new Hard Core Gray™ hard coat anodized finish with Black™ billet for superior corrosion protection.

    New Features! (LINK)

    Note: Fuel inlets are spaced 9.75" on center which will require a lengthened fuel line / fuel log arrangement. Fuel bowl inlets feature -8 AN O-ring port fittings to allow for a large variety of plumbing options. Fuel bowl can be plumbed from either side.

    Holley 650 CFM 4 Barrel Carburetor Installation Instructions (PDF)

  • Holley Wedged Float for Secondary Bowl with Jet Ext.
    Holley Wedged Float for Secondary Bowl with Jet Ext.
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    Made specially for the circle track carb. The fuel rides up the wedge and does not shut the fuel off sooner than it should.

  • Holley 64280 Hi-Tek Air Cleaner
    $329.99
    $359.99
    Holley 64280 Hi-Tek Air Cleaner
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                Highly polished cast aluminum housing with 2 high flow air cleaners (K&N style). 18" x 8" x 3" tall. Fits all popular 5-1/8" neck carburetors.  Has Holley logo.
  • Holley 0-8007 4160 Street 390 CFM 4 Barrel Carburetor
    Holley 0-8007 4160 Street 390 CFM 4 Barrel Carburetor
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    The Holley Model 4160 390 CFM four barrel carb features vacuum secondaries, side hung float bowls, electric choke (12 volt) and Ford auto-trans kickdown provision, which make for an easy-to-tune street driven 4 barrel carb for your Flathead, six cylinder or other small V-8 application. For use on a wide variety of vehicle weights, gearing and transmissions to allow smooth opening of secondaries

    • Electric choke for easy warm up 
    • Single inlet square fuel bowls
    • Power valve blow-out protection
    • 1 timed (spark) port, 1 full vacuum, and 1 PCV port
    • Ford A/T kickdown, does not work with A.O.D. transmissions
    • 100% wet-flow tested and calibrated for street drivability

    Holley 390 CFM 4 Barrel Carburetor Installation Instructions (PDF)

     

  • Holley 0-76650HB 650 CFM Ultra Double Pumper 4 Barrel Carburetor
    Holley 0-76650HB 650 CFM Ultra Double Pumper 4 Barrel Carburetor
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    The new Ultra Double Pumper four barrel carburetors have an enhanced fuel curve for optimum performance, with many more features such as aluminum construction; Hard Core Gray™ finish w/ black anodized billet aluminum metering blocks and base plate; 4 corner idle for precise idle control; mechanical secondaries for great performance; clear fuel level sight plugs for easy, no mess fuel level adjustments; Ford automatic transmission kickdown for use on popular Ford transmissions; four vacuum ports for all necessary vacuum accessories; and for the first time on a Double Pumper, factory pre–set electric choke for easy, fast cold start–ups.

    • ULTRA light – aluminum construction for 36% weight savings
    • ULTRA strong – billet metering blocks & base plates
    • ULTRA cool – Hard Core Gray™ w/ black anodized billet aluminum metering blocks and base plate
    • ULTRA easy – built in sight window for simple float adjustments
    • ULTRA fast – high performance fuel curves

    Instructions (PDF)

  • Holley 108-1 Fitting Gasket, 9/16 Inch
    Holley 108-1 Fitting Gasket, 9/16 Inch
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    • For side hung float bowls
  • Holley 135-4 Secondary Diaphragm
    Holley 135-4 Secondary Diaphragm
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                Secondary diaphragm replacement for vacuum secondary 4160 series carbs.
            
  • Holley 20-133 RF Compressor LS Acc Drive Brackets, Pass. Side AC
    Holley 20-133 RF Compressor LS Acc Drive Brackets, Pass. Side AC
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    These accessory drive brackets from Holley are great when swapping a GM LS engine into a muscle car, truck, hot rod or other vehicle. These brackets were designed to deliver a factory style appearance, correct belt alignment, and factory stability.  Holley's kits supply the required brackets and hardware needed for installation.

    To determine correct application, these three easy steps will help get you going:

    • Step one is to determine your belt alignment based on your crank Pulley position on the engine you have.
    • Step two is to choose the Holley accessory drive brackets that you need (A/C, Alt & P/S or both).
    • Step three is to see which Holley installation kit your set–up requires to line up your accessories with your crank Pulley position. An application specific installation kit (part # 425211, 425212, or 425213) is REQUIRED for most applications.

    Note: When referring to guide links below, keep in mind that part numbers shown are MFG numbers without "425" prefix.

    Fitment and Required Components Guide for 20-133 Bracket Kit (PDF)  

    Assembly Instructions for Holley 20-133 Accessory Drive Kit (PDF)   

  • Holley 97-151 LS Idler Tensioner Assembly with Grooved Pulley
    Holley 97-151 LS Idler Tensioner Assembly with Grooved Pulley
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    These LS engine style tensioner assemblies are for use with all Holley passenger side LS accessory drive brackets (includes 68 mm grooved pulley).  They are manufactured from quality material matched with OE specs to effectively keep proper belt tension and prevent belt slippage when using a mechanical fan.

    • Designed for use with Holley accessory drive brackets (42520133)
    • Grooved pulley
    • For LS engines
  • Holley 0-80805HB Ultra HP Gas 950 CFM 4 Barrel Carburetor
    Holley 0-80805HB Ultra HP Gas 950 CFM 4 Barrel Carburetor
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    Holley HP™ four barrel Carburetors have been the standard in racing four barrel carburetors for nearly two decades. So how do you make them better? You make them 38% lighter, increase the fuel capacity by 20% and add 30 other new features! They're available in an all–new Hard Core Gray™ hard coat anodized finish with Black™ billet for superior corrosion protection.

    New Features! (LINK)

    Note: Fuel inlets are spaced 9.75" on center which will require a lengthened fuel line / fuel log arrangement. Fuel bowl inlets feature -8 AN O-ring port fittings to allow for a large variety of plumbing options. Fuel bowl can be plumbed from either side.

    Holley 950 CFM 4 Barrel Carburetor Installation Instructions (PDF)

  • Holley 242-1 B/B Chevy Replica LS Coil Covers
    Holley 242-1 B/B Chevy Replica LS Coil Covers
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    Do you own a vehicle with an LS based engine, but love the looks of a big–block Chevy? These coil covers from Holley are equally at home on a 2010 Camaro or a LS swap muscle car, truck or any ride needing to cover the factory LS coils. They're ready to paint so use your imagination! The covers are easily installed by using basic hand tools. Just replace a few coil bracket mount bolts with the included ball studs and snap the covers in place.

    • Cover those unsightly coil packs on your GM LS engine
    • Ultra lightweight glass-filled nylon composite construction
    • Paint to match your color scheme
    • Trim to fit your application
    • OEM-style snap-on mounting
    • Oil fill adaptor and cap included
    • Fits LS2, LS3 & LS7 engines as well as other LS family engines using LS3 style coils & valve covers

    Note: Coil cover may require minor trimming on typical hot rod or swap application. Use on OE applications may require more extensive trimming to clear factory componentry (A/C box, brake booster, front drive accessories etc.).

    425-2421 Instructions (PDF)

  • Holley 0-80803HB Ultra HP Gas 750 CFM 4 Barrel Carburetor
    Holley 0-80803HB Ultra HP Gas 750 CFM 4 Barrel Carburetor
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    Holley HP™ Carburetors have been the standard in racing four barrel carburetors for nearly two decades. So how do you make them better? You make them 38% lighter, increase the fuel capacity by 20% and add 30 other new features! They're available in an all–new Hard Core Gray™ hard coat anodized finish with Black™ billet for superior corrosion protection.

    New Features! (LINK)

    Note: Fuel inlets are spaced 9.75" on center which will require a lengthened fuel line / fuel log arrangement. Fuel bowl inlets feature -8 AN O-ring port fittings to allow for a large variety of plumbing options. Fuel bowl can be plumbed from either side.

    Holley 750 CFM 4 Barrel Carburetor Installation Instructions (PDF)

  • Holley 37-754 Model 4160 4 Barrel, 750 CFM Rebuild Kit
    Holley 37-754 Model 4160 4 Barrel, 750 CFM Rebuild Kit
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    Each Holley Renew Kit carburetor rebuild kit contains all parts and gaskets that are necessary to restore “like new” performance to your four barrel carburetor. Detailed instructions are also included to guide you through the rebuilding process. Start off the season with a quality Holley Renew Kit repair kit. It's your guarantee for trouble–free cruising. 

    • Gaskets
    • O-Rings
    • Pump Diaphragm
    • Needle & Seat
    • Power Valve 
    • Step-By-Step Instructions
    • Detailed Tuning Guide
    427-37754 Instructions (PDF)
  • Holley 26-25 Banjo Swivel Fitting for 5/16 Hose, 9/16-24
    Holley 26-25 Banjo Swivel Fitting for 5/16 Hose, 9/16-24
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    Fuel inlet banjo fitting for use with 5/16" hose. Has 9/16"-24 threads.

  • Holley 0-80801HB Ultra HP Gas 600 CFM 4 Barrel Carburetor
    Holley 0-80801HB Ultra HP Gas 600 CFM 4 Barrel Carburetor
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    Holley HP™ Carburetors have been the standard in racing four barrel carburetors for nearly two decades. So how do you make them better? You make them 38% lighter, increase the fuel capacity by 20% and add 30 other new features! They're available in an all–new Hard Core Gray™ hard coat anodized finish with Black™ billet for superior corrosion protection.

    New Features! (LINK)

    Note: Fuel inlets are spaced 9.75" on center which will require a lengthened fuel line / fuel log arrangement. Fuel bowl inlets feature -8 AN O-ring port fittings to allow for a large variety of plumbing options. Fuel bowl can be plumbed from either side.

    Holley 600 CFM 4 Barrel Carburetor Installation Instructions (PDF)

  • Holley 12-802-1 110 GPH Blue Electric Fuel Pump with Regulator
    Holley 12-802-1 110 GPH Blue Electric Fuel Pump with Regulator
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                Please view the product's page for more information
            
  • Holley 34-505 Chrome Accelerator Pump Cover, 50cc
    Holley 34-505 Chrome Accelerator Pump Cover, 50cc
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    Chrome plated accelerator pump covers for Holley carburetors with 50cc accelerator pumps.

  • Holley 116-1 Side Hung Carburetor Float
    Holley 116-1 Side Hung Carburetor Float
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                These Holley replacement Nitrophyl carburetor floats are for side hung float bowls.
            
  • Holley 12-289-11 S/B Ford Racing Pro Mechanical Fuel Pump, 110 GHP
    Holley 12-289-11 S/B Ford Racing Pro Mechanical Fuel Pump, 110 GHP
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                 Competition 110 GPH, 6 1/2 -8 PSI.  Gasoline Only.
    Features:
    • High output performance.
    • Heavy Duty construction for continuous high RPM performance.
    • Six high flow valves ensure adequate and continuous fuel flow.
    • Repair kits are readily available to replace critical components.
    • Chevrolet pump features an extra beefy rocker arm casting to help withstand severe race usage.
    • 3/8" NPT Inlet/Outlet
  • Holley 0-86670HB Ultra Street Avenger 670 CFM 4 Barrel Carburetor
    Holley 0-86670HB Ultra Street Avenger 670 CFM 4 Barrel Carburetor
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    The Ultra Street Avenger Carburetors feature all aluminum construction and are equipped with metering blocks and a base plate made from 6061–T6 billet aluminum. They weigh in at approximately 5 lbs less than a comparable zinc carburetor.

    The new Ultra Street Avenger Carburetors have the same great features as their aluminum counterparts such as quick change vacuum secondaries for easy tuning to optimize performance or fuel economy; four vacuum ports for all necessary vacuum accessories; factory preset “No trouble” electric choke for easy start ups; built–in fuel filters; and an included fuel line kit so there are no unnecessary trips back to the parts store. This four barrel carb features the same optimized street calibration as the zinc versions so you know they will run great on your vehicle. In addition, the Ultra Street Avenger now comes with anodized metering blocks and a base plate made from 6061–T6 billet aluminum and a built in, clear fuel level sight glass for easy, no mess fuel level adjustments.

    The clean, Hard Core Gray™ w/ black anodized billet aluminum metering blocks and base plate will certainly set your ride apart whether you are at the show or track.

    Don't trust your performance to just anyone, Holley is the only Modular carburetor company that has been in business for over 100 years and has powered every NASCAR champion since the 60's.

  • Holley 0-9776 4160 Dual Quad 450 CFM 4 Barrel Carburetor
    Holley 0-9776 4160 Dual Quad 450 CFM 4 Barrel Carburetor
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    The Holley Model 4160 450 CFM four barrel carburetor is great for use on tunnel rams. It has mechanical secondaries and is designed for use on inline dual 4 barrel applications or small displacement Ford applications. Linkage is not compatible with GM or Chrysler Automatic Transmissions.

    • Mechanical secondaries
    • No choke
    • Side hung float bowls
    • For dual quad or tunnel ram applications

    Holley 4 Barrel Carb Installation Instructions (PDF)

  • Holley Float for Primary Bowl
    $23.99
    $34.99
    Holley Float for Primary Bowl
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    Made specially for the circle track carb. The fuel rides up the wedge and does not shut the fuel off sooner than it should.

    Note: Float should work on any Holley model except the 4160 with brass center hung floats.

  • Holley 37-119 Model 4160 4 Barrel, 600 CFM Carb Rebuild Kit
    Holley 37-119 Model 4160 4 Barrel, 600 CFM Carb Rebuild Kit
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    Each Holley Renew Kit carburetor rebuild kit contains all parts and gaskets that are necessary to restore “like new” performance to your four barrel carburetor. Detailed instructions are also included to guide you through the rebuilding process. Start off the season with a quality Holley Renew Kit repair kit. It's your guarantee for trouble–free cruising.

    For Holley 600 CFM electric choke, side hung float bowl.

    • Gaskets
    • O-Rings
    • Pump Diaphragm
    • Needle & Seat
    • Power Valve 
    • Step-By-Step Instructions
    • Detailed Tuning Guide
    427-37119 Instructions (PDF)
  • Holley 0-80528-1 HP Series 750 CFM Gas 4 Barrel Carburetor
    Holley 0-80528-1 HP Series 750 CFM Gas 4 Barrel Carburetor
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    Holley's HP Series four barrel carburetors set the standard in oval track race carbs. These performance calibrated gasoline four barrel carbs are race ready, right out of the box. The Model 4150 HP 4 barrel carb is packed with premium features like contoured air entries, high strength castings, and stainless throttle plates, all of which will provide you with a definite advantage at the track.

    • Calibrated for gasoline
    • Dichromate finish
    • Contoured Venturi entry angles and symmetrical venturi bores
    • Screw-in air bleeds for precision tuning
    • High flow metering blocks
    • Viton® Non-stick gaskets
    • Lightweight slotted misture screws for tuning stability
    • Four corner idle system
    • Stainless steel throttle plates
    • Button head throttle plate screws for superior airflow
    • Center hung Dominator style fuel bowls
    • Spun-in down leg style boosters
    • High strength sealing surfaces
    • Power valve blow-out protection
    • 100% wet flow tested and calibrated
    • Progressive mechanical secondaries
    • Double 30cc accelerator pumps
    • Venturii size: 1.376"
    • Throttle bore: 1.687"

    Holley 750 4 Barrel Carb Installation Instructions (PDF)

  • Holley 12-833 1962-1974 Small Block Ford Street Fuel Pump
    Holley 12-833 1962-1974 Small Block Ford Street Fuel Pump
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    These all-new (not rebuilt) mechanical fuel pumps from Holley have a 7-1/2 psi shut-off pressure and deliver 80 GPH. The adjustable lower housing permits fuel ports (1/4" NPT) to be rotated for best fuel line access. Pump fittings not included (sold separately). These pumps have a flash chrome finsih that is not show quality.

    • High Output Fuel Flow
    • Flows 80 GPH Free Flow
    • Shutoff Pressure Preset at 7.5 PSI
    • Fuel Pressure Regulator is Not Required
    • Heavy Duty Construction For Continuous High RPM Operation
    • Fuel Body Casting Can Be Rotated to Accommodate Various Plumbing Situations
    • Inlet & Outlet Tapped For 1/4" NPT

    Holley Pump Tech Info (PDF)

  • Holley 20-12 Accelrator Pump Cams
    Holley 20-12 Accelrator Pump Cams
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    Includes eight assorted pump cams to fine-tune your accelerator pump shot. Accelerator pump shot relative to cam color from lightest to heaviest are as follows: White, Blue, Red, Orange, Black, Green, Pink & Brown.

    • Tailor Accelerator Pump Performance
    • Each Cam Is Different Shape/Profile
    • Gives Different Results
  • Holley 34-26 Quick Change Secondary Float Bowl
    Holley 34-26 Quick Change Secondary Float Bowl
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                Quick change float bowl for secondary side of 4150/4160 carbs for center hung floats only.

    NOTE: Primary and secondary bowls are not interchangeable!

    425-3426 Instruction Sheet (PDF)