Thank you, good info. Just to clarify the plate (the picture with the pencil in it) is the carburetor ID? The casting number (the 3/8" circle with a 7 digit number in it) is used for what? My quadrojet has both, and that number I couldn't find in a Google search.

Why would the carb made in Dec 66 have a stamping of 03168?

I want something for a Daily Driver...maybe I'll shop around for a larger q-jet.