Quick Fuel M 650 M Series 650CFM Mechanical Secondary Electric Choke Marine Carb efi regulators LS1 Full Length Engine Swap Jones LS1 Full Length Engine Swap Header fits 68 72 Chevelle El Camino Monte Carlo Sprint applications 1966 1970 PLYMOUTH GTX Barrels 4 Billet Color Diecast No Billet Booster Down Leg Brand Quick Fuel Carburetor Use Marine CFM 650 Choke Electric Circuit 2 Condition New Emission Code 3 Finish Black Fuel Gasoline Fuel System Carbureted High Speed Air Bleed 31 Idle Air Bleed Size 70 Marine Engine Size Universal Marine Use Yes Material Aluminum Model 4150 Primary Main Jet 71 Primary Power Valve 65 Primary Pump Nozzle Size 33 Product Type Quick Fuel Marine Carburetor Secondaries Mechanical Secondary Main Jet 78 Supercharged Application No Throttle Bore 1 11 16 inch Warning California Proposition 65 Warranty Limited 90 Day Exclusive Black Diamond coating for enhanced corrosion protection and appearance