Product Description
Carburetor
Ultra Double Pumper Carburetor
Ultra Double Pumper Carburetor; 4 bbl; 750 cfm; Model 4150; Mech. Secondary; Electric Choke; Gasoline; Dual Fuel Inlet; Hard Gray Metering Block/Base Plate w/Gold Hardware;
- Barrel: Four
- Billet Color: Black
- Booster Type: Down Leg
- Carburetor Type: 4150
- CFM: 750
- Choke: Electric
- Emission: Without EGR
- Finish: Hard Core Gray
- Flange: Square Bore
- Fuel Inlet: Dual
- Fuel Type: Gasoline
- Material: Aluminum
- Primary Main Jet: 72
- Primary Power Valve: 6.5
- Secondary Main Jet: 80
- Secondary Pump Nozzle Size: 31
- Secondary Type: Mechanical
- Supercharged Application: No
- Throttle Bore: 1.688 in.
- Type: Automotive
- Usage: Street/Strip
- Vacuum Port Quantity: 1 timed (spark); 2 full; 1 PCV
- WARNING CA Proposition 65: Yes
- WARNING CA Proposition 65 Message: WARNING: Cancer and Reproductive Harm - www.P65Warning.ca.gov
- Metering Blocks Base Plate For Good Looks True Gasket Sealing
- 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
- Misc. Pump Nozzle
- Aluminum Construction For A 43% Weight Savings
- Lightweight Vehicles w/Auto Trans w/High Stall/Low Gearing
- 100% Wet Flow
Holley Double Pumper(R) 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.
Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors have powered every NASCAR Sprint Cup team and nearly every NHRA Pro-Stock champion for four decades. Now, Holley EFI is dominating the performance world as well as our products for GM's LS engine. Holley's products also include performance fuel pumps, intake manifolds & engine dress-up products for street performance, race and marine applications. As a single solution, or partnered with products from other Holley companies - Hooker Headers, Flowtech Exhaust, NOS Nitrous, Weiand, Earl's Performance Plumbing, or Diablosport - Holley products can give you the edge you need over the competition.
