Re: Hemi Head Z/28
Chevy and Ford both went wild to win the Trans-Am Champship 1967 to 69. Ford built the Tunnel Ram 302 with huge heads so Chevy built the Porcupine 302. The Tunnel Ram didn't run that well so Ford changed to the Boss 302. The Chevy/Traco 302 motors were making enough HP with the old fulie heads so they didn't use the Porcupine heads. If I remember correctly, Smokey said in his book that about 200 sets were cast and they were going to release them as an over the counter service part to make them legal in SCCA but never completed the program.
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