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. The Holley 0-80443 Marine carburetor is designed with a universal calibration good for large cubic inch marine engines where a mechanical secondary 4150 model 4BBL with electric choke is required Features: Gold Dichromate finish for corrosion resistance and classic Holley looks Universal Marine Calibration Factory preset electric choke for easy startups Mechanical secondaries for awesome performance 30cc primary and 50cc secondary accelerator pumps for additional fuel under initial acceleration Dual feed fuel inlets for constant high volume fuel delivery 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!
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