Description

750 CFM – 4150 – Mechanical Secondaries – Shiny – GasolineShiny with black anodized billet aluminum metering blocks/base plate for good looks and true gasket sealingUltra Double Pumpers feature an Optimized street/strip calibration that works out-of-the-boxFactory preset electric choke for easy startupsMechanical secondaries for awesome tire turning performance4 corner idle allows you to precisely control your idle systemBuilt in, clear fuel level sight glass for easy, no mess fuel level adjustmentsAluminum construction for a 43% weight savingsCompatible with GM, Chrysler, and Ford A/T kickdown linkage. Additional parts may be required.Intended for lightweight vehicles w/ manual trans or automatics with high stall low gearing100% wet-flow tested by Holley technicians to assure it arrives ready to run!ULTRA lightAluminum construction for 43% weight savingsULTRA shinyTumble polished finish holds shine longerULTRA strongBillet metering blocks base platesULTRA coolBlack anodized billet aluminum metering blocks and base plateULTRA easyBuilt in sight window for simple float adjustmentsULTRA fastHigh-performance fuel curvesHolley 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 Pumperâ?¢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 Black metering blocks and throttle body will certainly set your ride apart whether you are at the show or track.

Barrels: 4

Billet Color: Black

Body Color:Polished Aluminum

Body Finish: Polished

Body Material: Aluminum

Booster Design: Downleg

Booster: Downleg

Carburetor Material: Aluminum

Carburetor Use: Performance and Race

CFM Rating:750

Choke Type: Electric

Choke: Electric

Color:Polished/Black

Condition: New

Cubic Feet Per Minute Rating: 750

Finish:Polished/Black

Flange Shape: Square

Flange Type: Square/4150

Fuel Inlet: Dual

Fuel Type: Gasoline

Fuel: Gasoline

Grade Type: Performance

Linkage Attached: Yes

Marine Approved: No

Material: Aluminum

Model: 4150

Mounting Hole Quantity: 4

Primary Jet Diameter: 73

Primary Main Jet Size:73

Primary Power Valve: 6.5

Primary Pump Nozzle Size: 31

Secondary Barrel Type:Mechanical

Secondary Main Jet Size:80

Secondary Pump Nozzle Size: 28

Spacer Included: No

Supercharger Compatible:No

Throttle Bore Diameter:1.688 inch

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