1972 455 H.O.
actually, I am not offended that you did not mention the 72, in fact I am well aware of its shortcomings...it is the differences between the RAIV and the H.O....and the fact that the winner is the 455 High Output...only pleases me more since I own a 1972 Trans Am...there you have it....Pontiacs ultimate engine died on the drawing board...to be continued 1971/72 455 H.O. vs. 1973/74 S.D.
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