Speedway Motors stocks all the best names in circle track racing carburetors and intake manifolds! Plus, we have a great selection of fuel cells, as well as electric and mechanical fuel pumps. Don't forget to let your engine breath with filters from K&N, R2C and aFe Power. Whether you run alcohol or gas, Speedway can fuel your need for speed!
Fuel Pressure Regulators
Carburetor Fuel Inlet Fittings
Carburetor Fuel Logs
Carburetor Repair Kits
Carburetor Adapter Plates
Carburetor Metering Blocks
Carburetor Mounting Gaskets
Carburetor Throttle Cable Brackets
Fuel Pressure Regulator Service Kits
Carburetor Accelerator Pump Diaphragms
Carburetor Stud Kits
Accelerator Linkage Bushings
Carburetor Metering Jets
Accelerator Linkage Kits
Accelerator Linkage Rod Connectors
Carburetor Float Bowl Gaskets
Carburetor Needle and Seats
Carburetor Return Springs
Carburetor Float Bowls
Carburetor Power Valves
Carburetor Accelerator Pump Cams
Carburetor Accelerator Pump Nozzles
Carburetor Accelerator Pumps
Carburetor Base Plates
Carburetor Float Bowl Plugs
Carburetor Float Kits
Carburetor Heat Insulators
$309.99More InfoJet Performance 37001 Rochester Circle Track 2 Barrel Carburetor(Part #45537001)x
This Jet Performance Products 500 CFM 2GC carb is modified specifically for circle track racing. This Rochester carb complies with the IMCA rules. They are arguably the best OEM production two barrel carburetor for use in circle track racing.
- .135 needle and seat to ensure adequate fuel and supply
- Idle, transition, and accelerator pumps are modified
- 1-11/16" bore, 1-3/8 venturi
- Uses Holley jets (comes equipped with size #74)
- 5/8-18" inverted flare fuel inlet
- 2.008" x 3.695" mount pattern w/ .351" mount holes
- No choke mechanism
- Modified cluster to keep fuel curve correct throughout the RPM range
$2.99More InfoAccelerator Pump Spring for 9 Super 7 Carburetors(Part #91011546)x
Need to replace your original accelerator pump spring on your 9 Super 7 Carburetor? This is the replacement spring that you need. It's important to make sure the spring you are using does not wear out so that your accelerator pump rod functions as it needs to.
- Replacement accelerator pump spring
- For 9 Super 7 Carbs
- Sold Individually
$9.99More InfoHolley 10833-5 Fuel Bowl Gasket(Part #42710833)x
For Holley double pumper carbs. Package of five gaskets.
$99.99More InfoMSD 2222 Fuel Pressure Regulator, Boost Adjustable(Part #5472222)x
This Regulator is designed for turbo or supercharged engines. As boost pressure increases, more fuel is required by the engine. This regulator features a boost reference circuit that adds more fuel in relation to boost pressure. The inlet and outlets are 5/16" and a jam nut is supplied for special threads on the bottom to ease mounting to a bracket. These rugged Regulators are free standing so they don't have to be mounted directly to a fuel rail and can be installed in any position. Fuel pressure is set with an adjusting bolt and is locked in position with a locking nut.
- Boost Referenced Regulator
$4.99More InfoClear View Sight Plugs(Part #54565226)x
Allows you to check the fuel level in the float bowl of your Holley carburetor without removing the plug and spilling fuel. Thread is 5/16"-24 and the plug diameter is 0.50".
$291.99More InfoMSD 2922 Fuel Pump Return Kit(Part #5472922)x
If you plan to run a return line with your Atomic EFI system, this kit provides a regulator, 15 ft of 3/8" line and the fittings to assemble.
- Regulator included
- Ready to assemble
$15.99More InfoHolley 116-3 Center Hung Carburetor Float(Part #4271163)x
These Holley replacement Nitrophyl carburetor floats are for center hung float bowls.
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$13.99More InfoAFCO 10171 Bushing Kit w/ RH Threaded Female Rod End(Part #10610171)x
AFCO Throttle Rod Components
$5.99More InfoKinsler Fuel Injection 3328 Bypass Valve Spring, 7 Lb.(Part #4733328)x
Dial in your bypass valve with these standard bypass springs for use with alcohol carburetors. Spring has a .028" wire diameter.
$44.99More InfoSpeedway Aluminum Fuel Log for Demon Carburetor(Part #91011600)x
Ensures adequate fuel pressure to carburetor and helps eliminate fuel starvation problems. Fuel pressure is regulated after carburetor has been supplied and not before. Must use return fuel line to take full advantage of benefits.
Features AN8 inlet and two AN8 outlets. Threaded 3/4" NPT (plugged) on back that can be used for a return line. Also has 1/8" NPT outlet for fuel pressure gauge, fittings sold separately.
From: $29.99More InfoSpeedway Holley Mechanical Fuel Pump Fuel Line Kit(Part #6174090)x
This pump-to-carb fuel line kit will get you the -8 AN hose, hose end fittings and mechanical fuel pump fitting if required. Choose from push-on steel or aluminum fittings with blue hose, or aluminum fittings with stainless steel braided hose. Comes with -8 AN hose only.
Fitting sizes listed indicate fuel pump outlet fitting size.
Style Choice Guide:
- ALU - aluminum fittings with blue hose
- SS - aluminum fittings with stainless hose
- STL - steel fittings with blue hose
$35.99More InfoWillys Carbs WCD251 2-Barrel Throttle Stop, Return Spring Bracket(Part #80015251)x
- Fits 4412 style 2 bbl. carburetors
- Throttle stop and return spring bracket all in one
$145.99More InfoFuelab 52501-1 EFI Fuel Pressure Regulator, 25-90 PSI(Part #96052501)x
Gasoline, methanol, ethanol, and dieselfuel compatible for fuel injected applications. Accepts port style and non-port style union fittings without interference. Also features two 1/8” NPT gauge ports for an external pressure gauge and pressure reference. Fine thread pitch on adjustment screw for precise pressure adjustment.
- Includes stainless steel mounting bracket
- One -6AN inlet and one -6AN return port in-line
$37.99More InfoMoroso 64945 Phenolic Insulating Carb Spacer for Holley 390(Part #54564945)x
Phenolic material is a type of plastic resin which has excellent insulating properties, so it will keep the fuel in your 4 barrel Holley 4150/4160 cooler for more power. For 390 CFM carbs with 1.467" diameter bores.
- Specially formulated material reduces heat conductivity 10 times greater than aluminum
- Reduces fuel temperature inside the carburetor
- Denser, more powerful fuel charge to the manifold
- 4 hole plenum design
- 1/2" height
- Gaskets not included
$64.99More InfoGaerte Zinc Plated Steel Throttle Stop(Part #3911500)x
Earl Gaerte also came up with this slick zinc plated steel throttle stop and return spring bracket. Simple and functional. For most Holley or Demon carbs.
$32.99More InfoAFCO 10175-18 Throttle Linkage Rod Kit, 18 Inch(Part #1061017518)xAdjustable throttle linkage rod kit includes 1/4" plated steel rod with right hand 1/4" male threads on both ends. Kit also includes carb bushings with 1/4" female rod ends, jam nuts and rod.
- 1/4" plated steel rod w/ r/h 1/4" male threads on both ends
- Includes carb bushings, 1/4" female rod ends, jam nuts, & rod
$10.99$11.99More InfoAFCO 10174 Carburetor Bushings, Pair(Part #10610174)x
AFCO Throttle Rod Components
$54.99More InfoHolley 34-25 Quick Change Primary Float Bowl(Part #4253425)x
Update your Holley 4150/4160 carb with quick change float bowls. Includes gaskets and plugs. For center hung float bowl. Also includes jet driver.
NOTE: Primary and secondary bowls are not interchangeable!
$209.99$272.95More InfoLokar 1010118 Throttle Cable/Spring Return Bracket Kit, 4 Hole, Black(Part #4911010118)x
This black throttle bracket from Lokar is designed for Morse cables and or single cylinder throttle stops. Its design eliminates top mount flopping and can function without throttle stops.
- Scoop tray studs and stainless hardware included
- Return Springs with dual wound ends for safety
- Eliminates single hook ends opening up
- Creates less strain on throttle cable
- For 4500 Series Carburetors
- Made In The U.S.A.
$8.99More InfoHolley Carburetor Gas Needle and Seat, .110 Inch(Part #4276504)x
"Viton" needle and seat is resistant to dirt and provides superior seal when closed. Size .110" for gas carbs. Gasket not included.
$1,149.99More InfoWillys Carbs WCD64002 HP Series Gas 4 Barrel Carburetor, 750 Base(Part #80064002)x
The Willy's four barrel carbs feature Holley 750 CFM main bodies, special radius air entry, externally adjustable metering blocks, screw-in air bleeds, black powder coating and Teflon throttle shaft bushings. 355-406 ci.
$39.99More InfoAdjustable Holley 2300/Rochester 2G Two Barrel Carb Adapter(Part #91011510)x
This set of aluminum intake adapter plates allows you to adapt a Rochester 2G 2 barrel or Holley 2300 series two barrel carburetor onto a 4 barrel intake manifold and adjust it forward or back on manifold. The carb spacer plates feature an open design to increase plenum volume which improves top end performance. When assembled the adapter will measure 1" tall.
Kit includes carb adapters, gaskets and all necessary hardware.
$107.99$109.99More InfoHolley 36-182 4150 Carb Tuning-Calibration Kit(Part #42736182)x
This tuning kit contains a selection of main jets, pump nozzles and power valves in popular sizes. All contained in a handy and durable plastic case. Gaskets are included to facilitate carburetor reassembly.
For gasoline carbs only. Fits Model 4150 "Double Pumper" carburetors.
- 4 Each - 8 Metering Jet Sizes ranging from #70-84
- 2 each #35 and # 37 pump nozzles
- 3 Power Valves sizes 3.5, 4.5 and 5.0
- 12 Metering Block Gaskets
- 12 Fuel Bowl Gaskets
- Misc. Pump Nozzle
- Misc. Power Valve
- Misc. Fuel Bowl Screw, pump nozzle and power valve Gaskets
$96.99More InfoHolley 37-1536 Performance Carburetor Renew Rebuild Kit(Part #427371536)x
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.
- Serves all Holley Performance Carburetors
- Genuine Holley quality parts
- Extra parts for performance tuning
- Step-by-step instructions
- Detailed tuning guide
- Packaging also parts tray
- Pump Diaphragm
- Needle & Seat
- Power Valve
- Step-By-Step Instructions
- Detailed Tuning Guide
427371536 Carb Addendum (PDF)
$47.99More InfoHolley 37-485 4150 4 Barrel Carburetor Rebuild Renew Kit(Part #42737485)x
These kits give you the parts required to bring your Holley four barrel carb back to original specifications and "like new" condition. The Renew Kit package includes new gaskets, O-rings, pump diaphragms, needle and seats, power valves, and a detailed instruction sheet to take you step-by-step through the rebuilding process.
427-37485 Instructions (PDF)
$107.99More InfoHolley 37-1539 4150 4 Barrel Alcohol Carburetor Rebuild Master Kit(Part #427371539)x
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.
- Pump Diaphragms
- Needle & Seats
- Power Valves
- Step-By-Step Instructions
- Detailed Tuning Guide
427-71539 Instructions (PDF)
Percy's 15013 Extened Dual Feed Carburetor Fuel Line-Holley 4150 -8 AN(Part #25915013)x
This extended length dual inlet carburetor fuel line from Percy's compensates for the extra length between fuel bowls when using Percy's Adjust-A-Jet adjustable metering blocks. Dual feed fuel log features -8 AN anodized aluminum fittings and works with Holley 4150 style Double Pumper carburetors.