Notice: The oil channels of carburetors will be blocked without cleaning. Please clean up the oil channels and air filters as well as use the clean fuel before installing the carburetors. Features & Benefits 100% New and High Quality Easy Installation Direct Replacement 2 Year Warranty Profession install is highly recommend For the Following Cars: For Ford Engines: 4.9 L 300 cu 4.1 L 250 cu 3.3 L 200 cu For 1965-1985 Broncos, for Fairmont, for Granada, F100, F150, F250 & F350 .