1930 to 1931 Cadillac V-16 Carburetors (Pair), REPLACE YOUR JOHNSON CARBURETORS WITH DETROIT LUBRICATOR MODEL 51 CARBURETORSREPLACE YOUR JOHNSON CARBURETORS, WITH THE DETROIT LUBRICATOR MODEL 51 CARBURETORS FOR IMPROVED TOURING THIS RETROFIT IS MANUFACTURED FOR EXACT FIT OF INSTALLATION All of Our Carburetors are PreTested for Smooth Idle and Maximum Power Exact Specification, Investment Castings Silicon Bronze Throttle Bodies and Float Bowls Precision CNC Brass Machined Parts Updated Design of Internal Parts Polished Brass Components Gasoline and Ethanol Proof Exterior