Match Race 1972 ~ 'Duster 340 vs 'GTO 400'

The "S" 068 cam was the RAIII cam as I recall. Advertised duration was 288/302. The lift was still in the 420"ish range, but it was a really strong street cam. I think Pontiac even knew that the "D" heads didn't flow at that point. The standard engines in GTO's and Firebirds used the 067 273* that was probably also used in the 72' 400. They really didn't step up their cam specs other then the 68' Ram Air II and then the with the same cam when the 70' RAIV was offered with the 1.6 rockers.