J Heads?

They did replace it in 74 but then left in 76 with the A body.

Yeah but with wheezer compression.....that aint what I said in the quote. lol

A 10.2:1 360 (same as the early 340) with all the 340 trimmings including heads and cam wouldda blasted 350 plus HP through them HP manifolds. The 340 wouldda been a distant memory.