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Mark Yacavone · 11-20-2007, 04:14 PM

The 72 Pontiacs were rated differently with a new net rating system. NHra just brought those engines up to where they were more in line with the 71's. The head and intake casting numbers were the only difference, spec -wise.

11-20-2007, 04:14 PM	#31
Mark Yacavone Veteran Member Join Date: Mar 2002 Location: Miles From Nowhere Posts: 7,476 Likes: 2,653 Liked 4,579 Times in 1,734 Posts	Re: hello, I'm new The 72 Pontiacs were rated differently with a new net rating system. NHra just brought those engines up to where they were more in line with the 71's. The head and intake casting numbers were the only difference, spec -wise. __________________ We are lucky we don't get as much Government as we pay for..... Will Rogers