Holley's Double Pumper carburetors are an American icon in performance carburetion, from their roots on factory muscle cars to powering vehicles across the finish line. This 650 CFM model adds an electric choke on top of the classic Double Pumper's dual accelerator pumps, mechanical secondaries, and dual feed fuel inlets, and is intended for lightweight vehicles with a manual transmission or an automatic with a high-stall converter and low rear gearing.
Specifications:
- CFM: 650
- Model: 4150
- Secondaries: Mechanical
- Choke: Electric
- Finish: Gold Dichromate
- Material: Aluminum
- Fuel Type: Gasoline
- Fuel Inlet: Dual
- Flange Type: Square/4150
- Throttle Bore: 1.688 inch
- Primary Jet: 67
- Primary Power Valve: 6.5
- Secondary Jet: 73
- Mounting Holes: 4
- Vacuum Ports: 1 timed (spark), 1 full, 1 PCV
- Warranty: Manufacturer's Limited 90 Day Warranty
- Part Number: 0-4777CE
Due to natural variations in the dichromate plating process, plating color may vary from casting to casting and carburetor to carburetor — this is normal and not a cosmetic defect. A black or shiny finish is available for those who prefer no color variation.
FAQ
What CFM rating is this carburetor?
650 CFM.
What type of choke does it use?
An electric choke for precise cold-start control.
What kind of vehicles is this Double Pumper intended for?
Lightweight vehicles with a manual transmission, or an automatic transmission with a high-stall converter and low rear gearing.
Why does the gold dichromate finish vary between units?
Natural variations in the dichromate plating process can cause slight color differences from casting to casting; this is normal and not a defect.
