WILL FIT ALL MODELS OF 4100 1958-1967 AND WILL BUILD EITHER 1.08 OR 1.12 SIZE BORES, STANDARD OR HIGH PERFORMANCE DESIGN. THIS MAY FIT OTHER CARS AND TRUCKS THAT ARE NOT 58-67 MODELS BUT THE CARB NEEDS TO BE FROM THAT 58-67 PERIOD.THIS TOP QUALITY KIT IS MADE IN THE U.S.A. AND HAS THE NEWEST STYLE NITRILE GASKETS WITH THE VITON FUEL NEEDLE SEATS.