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11-20-2007, 04:14 PM
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#31 |
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Veteran Member
Join Date: Mar 2002
Location: Miles From Nowhere
Posts: 7,822
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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.
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