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Holley 0-4777SAE - Carburetor. Double Pumper 4150®. 650 CFM. Electric Choke

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.

  • 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!

DETAILS
Barrel:
4
CFM:
650
Carburator Setup:
Single-Carburator
Choke:
Electric
Color/Finish:
Polished
Emission:
Without EGR
Flange:
Square Bore
Inlet Quantity:
Dual
Notes:
Primary Main Jet: 67, Primary Power Valve: 6.5, Primary Pump Nozzle Size: 28, Secondary Main Jet: 73, Secondary Pump Nozzle Size: 28
Secondaries:
Mechanical
Usage:
Hi-Performance, Racing
Available downloads:
Download instructions

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Holley 0-4777SAE - Carburetor. Double Pumper 4150®. 650 CFM. Electric Choke

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.

  • 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!

DETAILS
Barrel:
4
CFM:
650
Carburator Setup:
Single-Carburator
Choke:
Electric
Color/Finish:
Polished
Emission:
Without EGR
Flange:
Square Bore
Inlet Quantity:
Dual
Notes:
Primary Main Jet: 67, Primary Power Valve: 6.5, Primary Pump Nozzle Size: 28, Secondary Main Jet: 73, Secondary Pump Nozzle Size: 28
Secondaries:
Mechanical
Usage:
Hi-Performance, Racing

Available downloads:
Download instructions

0 of 0 reviews

Average rating of 0 out of 5 stars

Leave a review!

Share your experiences with other customers.


There are no installation notes for this product.

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Holley

Holley is one of the most established names in the American performance industry, with more than a century of experience in fuel systems and automotive performance. The brand is especially famous for its performance carburetors, which have been used in everything from classic street cars to high-performance racing applications. Today, the Holley range goes far beyond carburetors. It includes fuel pumps, fuel pressure regulators, fuel filters, intake manifolds, fuel tanks, HydraMat systems, air cleaners and a wide selection of carburetor components and accessories. Holley also provides engine, cooling, electrical and drivetrain components for a variety of classic and modern American vehicles. With products available for Chevrolet, Ford, Mopar and many other applications, Holley provides solutions for everything from simple maintenance to complete performance builds. Whether you are restoring a classic muscle car, improving fuel delivery or building a powerful V8, Holley offers proven components designed for reliable operation and strong performance.