Holley has enhanced its two most sought-after sizes of double pumper carburetors by introducing electric chokes. The 650 and 750 CFM models are now available in both the timeless classic zinc and the sleek shiny polished finishes.
Holley's Double Pumper® carburetors stand as the ultimate performance upgrade for hot street cars and race vehicles. An enduring American icon in the realm of performance carburetors, the Double Pumper has a rich legacy—from being the premier carburetor on numerous factory muscle cars to propelling countless vehicles across the finish line. Whether dominating the street or conquering the quarter mile, the Double Pumper proves to be an exceptional choice.
Specifically designed for use on lightweight vehicles equipped with a manual transmission or an automatic transmission featuring high stall and low rear-end gears, the Double Pumper is presented in a classic gold dichromate or a gleaming tumble-polished shiny finish. Key features include dual accelerator pumps for increased fuel during initial acceleration, mechanical secondaries for outstanding performance, dual feed fuel inlets ensuring a constant high volume of fuel delivery, and an electric choke for easy control of engine warm-up. When it comes to performance, trust only the best—Holley, the modular carburetor company with a century-long legacy, having powered every NASCAR champion since the '60s.
Features:
- Classic Zinc finish for corrosion resistance and classic Holley aesthetics
- Optimized street/strip calibration that works out-of-the-box
- Electric choke for precise cold start control
- Mechanical secondaries for impressive tire-turning performance
- Dual accelerator pumps for additional fuel during initial acceleration
- Dual feed fuel inlets for constant high volume fuel delivery
- Intended for lightweight vehicles with manual transmissions 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 system
Technical Specifications:
- Barrels: 4
- Booster: Straight
- Brand: Holley
- Carburetor Use: Performance and Race
- CFM: 750
- Choke: Electric
- Condition: New
- Emission Code: 3
- Finish: Gold Dichromate
- Fuel: Gasoline
- Fuel Inlet: Dual
- Marine Use: No
- Material: Aluminum
- Model: 4150
- Primary Main Jet: 70
- Primary Power Valve: 6.5
- Primary Pump Nozzle Size: 28
- 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
- Warranty: Limited 90 Day
- Local Pickup Available:
- No
- Local Delivery Available:
- No
- Additional Handling:
- No
