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 spilt fuel/fumes back into the carburetor for safe operation while on rough waters.
Model 4150; Electric Choke; Mechanical Secondary Double Pumper; Universal Performance Marine Calibration
Marine Carburetors should never be used on street applications.