Does anyone know production numbers on 60 Corvettes more specifically 2x4 carb car and now do you know if that is correct to that car?

You might want to try.
www.corvetteactioncenter.com Good corvette site !

Correct to car ??? The suffix code on the engine block should tell you if it's correct for engine. Also look for correct carbs as there are several models of the Carter WCFB i.e.; adjustable secondaries and vent cross over tubes.