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Forum: Pontiac - Race 09-15-2019, 10:44 AM
Replies: 26
Views: 7,184
Posted By TCSGTO
The same set of old style 72cc heads needed...

The same set of old style 72cc heads needed different timing on different shortblocks. On a 464 with Ross dished pistons and .040 Cometic gaskets they made best power at 43! I never ran it that high...
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