Holley upgraded their two most popular sizes of double pumper with electric chokes. The 650 and 750 CFM models are available in the classic zinc and shiny polished finishes. 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 Double Pumper is designed for use on lightweight vehicles with a manual transmission or an automatic transmission with a high stall and low rear end gears. The Double Pumper is available in a gold dichromate or tumble polished shiny finish and features dual accelerator pumps for additional fuel under initial acceleration
mechanical secondaries for great performance dual feed fuel inlets for constant high volume fuel delivery and an electric choke for easy control of engine warm up. 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.
Features: Shiny finish for corrosion resistance and classic Holley looks Optimized street/strip calibration that works out-of-the-box Electric choke for precise cold start control Mechanical secondaries for awesome tire turning performance Dual accelerator pumps for additional fuel under initial acceleration Dual feed fuel inlets for constant high volume fuel delivery 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! Compatible with GM, Chrysler, and Ford A/T kickdown linkage. Additional parts may be required. 4 corner idle allows you to precisely control your idle system SPECS: Barrels: 4
Booster: Straight Brand: Holley CFM: 750 Choke: Electric Emission Code: 3 Finish: Shiny Fuel: Gasoline Fuel Inlet: Dual Material: Aluminum Model: 4150 Primary Main Jet: 70 Primary Power Valve: 6.5 Primary Pump Nozzle Size: 28 Product Type: 4150 Model Carburetor Secondaries: Mechanical Secondary Main Jet: 81 Secondary Pump Nozzle Size: 31 Supercharged Application: No Throttle Bore: 1.688 inch Vacuum Ports: 1 timed (spark) port, 1 full, and 1 PCV port Part Number: 0-4779SAE Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every NASCAR Cup team and nearly every NHRA Pro-Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM's popular LS engine are dominating the LS scene as well. Holley's products also include performance fuel pumps, intake manifolds and engine dress-up products for street performance, race and marine applications. As a single solution or partnered with products from other Holley companies we can give you the edge you need over the competition!
This model of carburetor has the square bore flange bolt pattern. It can replace Holley, Edelbrock, Carter AFB, and Autolite style carburetors with 5 3/16" x 5 5/8" bolt pattern. If you have a spreadbore style intake manifold, you will need an adapter to install this carburetor. Similar to the Mr. Gasket #1932.
Optimized street/strip calibration that works out-of-the-box Electric choke for precise cold start control Mechanical secondaries for awesome tire turning performance Dual accelerator pumps for additional fuel under initial acceleration Dual feed fuel inlets for constant high volume fuel delivery 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! 4 corner idle allows you to precisely control your idle systemProduct Description:
Carburetor Double Pumper Model 4150 Aluminum Double Pumper 4-Barrel 750 CFM Square Bore Electric Choke Mechanical Secondary Dual Inlet Aluminum Tumble Polished Sold IndividuallyFor over a century Holley has driven the cutting edge of fuel-system design. That work continues today through Holley’s market-leading EFI products as well as through Holley’s family of best-in-industry brands. Top brands like MSD, Flowmaster, Hurst, Accel, and many more make up the industry’s leading offering of enthusiast-driven products to deliver robust, complete performance solutions for builders, racers, and drivers. From propelling the LS-, Coyote-, and Gen 3 Hemi-swap trends, to continuously innovating late-model and vintage vehicle performance, Holley’s commitment to its customers and their cars is at the core of everything we do.
