Carburetor Adjusting Tool for GM and Chrysler Features: For adjusting idle/mixture screws on many GM..
GM Idle Adjusting Tool Features: For all 1979 and up GM vehicles with carburetors Fits idle/ mixtu..
GM Carburetor Adjusting Tool Features: Tool easily adjusts GM C-4 carburetor idle-mixture screws. A ..
Carburetor Adjusting Adapters Features: ..