Hello, I just aquired a TPI intake manifold and want to know what year car it is from. I want to know if it is the new style heads or old style. Also if it is the old style can I just put that on my car (a 91' GTA 350 now) with aftermarket heads? Thanks

 

What's the casting number on the intake?
#14081005 is '85 - '86 intake, and you will need to elongate the four middle intake bolt holes (2 per side) for it to fit your heads.
#18436572 is a Corvette only intake up to '86. Will need the above modification.
#18483572 is an '87 and up casting and will not need the modifications above. It's a straight bolt-on for your heads.

 

Ooops, you have aftermarket heads, so the early style intakes should bolt right up.