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Holley 0-76650BL 650 CFM Ultra Double Pumper Carburetor, Blue

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#425076650BL

Holley 0-76650BL 650 CFM Ultra Double Pumper Carburetor, Blue

The polished finish is designed to hold the shine much longer
A 4 corner idle allows you to precisely control your idle system
Features an ultra light aluminum construction for 43% weight savings

$828.95

/each

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$921.95

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Product Summary

Universal Fit, 4-Barrel Carburetor Barrels, 650 CFM CFM

The polished finish is designed to hold the shine much longer
A 4 corner idle allows you to precisely control your idle system
Features an ultra light aluminum construction for 43% weight savings
Carb has blue anodized billet aluminum metering blocks and base plate
Has a built in, clear fuel level sight glass for easy, no mess fuel level adjustments

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Key Specs

Carburetor Barrels	4-Barrel
Fuel Type	Gasoline
Choke Type	Electric
CFM Range	600-699 CFM
CFM	650 CFM

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Holley 0-76650BL Details

ULTRA light Aluminum construction for 43% weight savings ULTRA shiny Tumble polished finish holds shine longer ULTRA strong Billet metering blocks & base plates ULTRA cool Blue 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® carburetors are a perfect performance upgrade for hot street cars and race vehicles. Double Pumper carburetors are an American icon when it comes to performance carburetors. From their roots as the premier carburetor on many factory muscle cars to powering thousands of vehicles across the finish line, the Double Pumper is a great choice whether you are burning up the street or the quarter mile. The Ultra Double Pumper 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 Double Pumper Carburetors have an enhanced fuel curve for optimum performance, with many more features such as aluminum construction; anodized billet aluminum metering blocks and base plate; 4 corner idle for precise idle control; dual accelerator pumps for additional fuel under initial acceleration; 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. The clean, polished look coupled with Blue metering blocks and throttle body will certainly set your ride apart whether you are at the show or track.

Shiny with blue anodized billet aluminum metering blocks/base plate for good looks and true gasket sealing
Ultra Double Pumpers feature an Optimized street/strip calibration that works out-of-the-box
Factory preset electric choke for easy startups
Mechanical secondaries for awesome tire turning performance
4 corner idle allows you to precisely control your idle system
Built in, clear fuel level sight glass for easy, no mess fuel level adjustments
Aluminum construction for a 43% weight savings
Ford A/T kickdown
Intended for lightweight vehicles w/ manual trans or automatics with high stall & low gearing
100% wet-flow tested by Holley technicians to assure it arrives ready to run!

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Installation Instructions (PDF)

Rebates

Holley Fuel Up Spring Savings Event 2026

Save 10% instantly on select products across the Holley family of performance brands during the annual Holley Fuel Up Spring Savings Event 2026. Instant rebate period runs from March 30, 2026 through April 19, 2026.

Guides & Documents

Carburetors Installation Instructions (425076650BL)

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

CARB warning

Holley 0-76650BL Specifications

KEY SPECS
MFG. Part #	0-76650BL
Brand	Holley
Carburetor Barrels	4-Barrel
Fuel Type	Gasoline
Choke Type	Electric
CFM Range	600-699 CFM
CFM	650 CFM
Carburetor Flange Type	4-Barrel Square Bore
Finish	Shiny
Material Type	Aluminum
Color	Blue
Secondary Type	Mechanical
Fuel Inlet Type	Dual
Gasket(s) Included	Yes
New or Remanufactured	New
Throttle Linkage Type	Universal
Supercharged Application	No

GENERAL
Model	4150
Booster	straight
Emission Code	3
Throttle Bore	1.688 inch
Vacuum Ports	1 timed (spark) port, 2 full, and 1 PCV port
Bolt Hole Pattern	5.160" x 5.625"
GTIN Code	090127664650
Sold in Quantity	Each

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