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All Holley Marine Carburetors are designed to meet Coast Guard specifications. A marine carburetors fuel metering system is calibrated to compensate for unique engine loads found on boats. The J-style vent tubes direct fuel/fumes back into the carburetor for safe operation while on rough waters.  



Gold Dichromate finish for corrosion resistance and classic Holley looks Universal Marine Calibration Model 4175 Qaudrajet replacement Vacuum secondaries for use on wide variety of boats. Compensate for all weights to allow smooth opening of secondaries. Factory preset electric choke for easy startups 30cc Accelerator pump for smooth starts Single feed fuel inlet for easy installation J-Style Vent Tubes Meets Coast Guard Specifications Power valve blow-out protection 100% wet-flow tested by Holley technicians to assure it arrives ready to run!

Holley 600-CFM (Fits GM 5.0 305, 5.7 350, 6.2 383)

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