Holley's Double Pumper® carburetors represent the ultimate performance upgrade for high-performance street cars and race vehicles. Serving as an enduring American icon in the realm of performance carburetors, the Double Pumper has a rich history—from being the primary carburetor on various factory muscle cars to propelling a multitude of vehicles triumphantly across the finish line. Whether you're dominating the street or conquering the quarter mile, the Double Pumper stands as an exceptional choice.
Engineered for use in lightweight vehicles equipped with either a manual transmission or an automatic transmission featuring a high stall and low rear-end gears, the Double Pumper is presented in a captivating gold dichromate or a meticulously tumble-polished shiny finish. Key features include dual accelerator pumps for additional fuel during initial acceleration, mechanical secondaries for stellar performance, dual-feed fuel inlets ensuring continuous high-volume fuel delivery, and a manual choke—cable-driven and hand-operated—for effortless control of engine warm-up.
When it comes to entrusting your vehicle's performance, choose reliability—Holley, the sole modular carburetor company with a century-long legacy. Having powered every NASCAR champion since the '60s, Holley remains a trailblazer in the industry.
Features:
- Shiny finish for aesthetic appeal
- Out-of-the-box optimized street/strip calibration
- Manual choke (Cable driven, hand-operated) for precise cold start control
- Mechanical secondaries for exceptional tire-turning performance
- Dual accelerator pumps for additional fuel during initial acceleration
- Dual-feed fuel inlets for continuous high-volume fuel delivery
- Designed for lightweight vehicles with a manual transmission or automatics with high stall & low gearing
- 100% wet-flow tested by Holley technicians to ensure it arrives ready to run!
Specifications:
- Barrels: 4
- Booster: Straight
- Brand: Holley
- Carburetor Use: Performance and Race
- CFM: 650
- Choke: Manual
- Condition: New
- Emission Code: 3
- Finish: Shiny
- Fuel: Gasoline
- Fuel Inlet: Dual
- Marine Use: No
- Material: Aluminum
- Model: 4150
- Primary Main Jet: 67
- Primary Power Valve: 6.5
- Primary Pump Nozzle Size: 28
- Product Type: Carburetor
- Secondaries: Mechanical
- Secondary Main Jet: 73
- Secondary Pump Nozzle Size: 28
- 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
