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.


Features

-Shiny with red 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!


Barrels 4

Billet Color Red

Booster Straight

Brand Holley

CFM 650

Choke Electric

Condition New

Emission Code 3

Finish Shiny

Fuel Gasoline

Fuel Inlet Dual

Marine Use No

Material Aluminum

Model 4150

Primary Main Jet 63

Primary Power Valve 6.5

Primary Pump Nozzle Size 28

Product Type 4150 Model Carburetor

Secondaries Mechanical

Secondary Main Jet 73

Secondary Pump Nozzle Size 31

Supercharged Application No

Throttle Bore 1.688 inch

Vacuum Ports 1 timed (spark) port, 2 full, and 1 PCV port

More Information
Part Type Carburettors
Product Line Air & Fuel Delivery
Brand Holley
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