Each carburetor is restored to original manufacturer condition. The carburetor is disassembled, including bases & all passage plugs. All components are then hot tank clean. Zinc castings are then dichromated(colored) for protection against oxidation. Aluminum castings are dichromated in clear. All linkage is cleaned & plated. Base assemblies are cleaned, painted or black oxided. The components are then reasembled with all correct new gaskets, pumps, needles & seats, clips, check balls, springs, etc. and all new correct hardware. Dual quads from 1955-1957. Service is also available for tri power sets.