Quick Fuel Black Diamond Marine Series Carburetor 600cfm # M-600 Carburetor, Q-Series Marine, 600 cfm, Vacuum Secondary, Electric Choke, Satin Black, Single Inlet, Each CFM: 600 Fuel Category: Gasoline Remanufactured: No Number of Barrels: 4 Carburetor Flange: Square bore Choke: Electric Secondary Type: Vacuum Fuel Inlet: Single Primary Jet Size: 67 Primary Power Valve (Hg): 6.5 Hg Primary Discharge Nozzle Size (in.): 0.035 in. Secondary Jet Size: 76 Primary Outer Air Bleed Sizes Included: 73 Primary Inner Air Bleed Sizes Included: 28 Secondary Outer Air Bleed Sizes Included: 39 Secondary Inner Air Bleed Sizes Included: 28 Carburetor Color: Satin black Ford Kickdown: No Booster Type: Down-leg Throttle Linkage Type: Universal Carburetor Height (in.): 3.250 in. Quantity: Sold individually. Notes: Fuel bowl inlet threads are 9/16-24 in.; the supplied inlet adapter is 5/8-18 in. inverted flare. Quick Fuel Black Diamond Marine Series Carburetors To ensure smooth, positive response from your watercraft fuel system, Quick Fuel Technology introduces Black Diamond Marine Series carburetors. The proper blend of air and fuel is critical when you're cruising miles from shore, and the innovative team at QFT has engineered carbs for every street and race application imaginable. Trust their expertise for your boat needs, as well. Depending on the Marine Series carburetor model selected, you can choose single or dual fuel inlets, vacuum or mechanical secondary, primary and secondary jet sizes, and inner and outer air bleed sizes.Quick Fuel Black Diamond Marine Series carburetors feature: Aluminum fuel bowls with sight glass windows for quick float adjustment Changeable idle air and high-speed bleeds PTFE-coated throttle shafts with PTFE bearing ribbons and stainless steel plates J tubes to prevent spillage Black Diamond high-temperature satin coating on main body and fuel bowls for enhanced corrosion protection and appearance; coating also provides a 6 percent reduction in fuel temperature 4-corner idle adjustment (except M-600) Billet metering blocks with changeable primary idle feed and power valve channel restrictions (except M-600)