Besides, there's no "upgrade" to a GTO engine. It's the same engine as in a Firebird 400, except the Firebird uses different exhaust manifolds. And the fact it's the wrong year engine further adds to the fact that it's just a transplanted engine.
I was under the impression that the difference was the carb on the Firebird was restricted/de-tuned a bit in comparison to the GTO carb.
David
http://FirstGenFirebird.org/show/closeup.mv?CarID=571 If i don't get this car back on the road soon i'm gonna go postal! On a quest for FGF knowledge 1968 Pontiac Firebird Convertible 1969 Oldsmobile Cutlass "S" Convertible *Sold*
