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Forum: Pontiac - Street 11-05-2022, 10:14 AM
Replies: 62
Views: 7,140
Posted By Skip Fix
We tried doing a 0.100 down deck to lower...

We tried doing a 0.100 down deck to lower compression on a 455 in the late 80s to lower CR down to 10:1 . Ran good but had to have race gas or was a rattling fool!
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