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Forum: Pontiac - Street 11-05-2022, 09:52 AM
Replies: 62
Views: 7,146
Posted By tallrandyb
Agreed, I'm cranking 190-200 on my 65 389 and I'm...

Agreed, I'm cranking 190-200 on my 65 389 and I'm staying on the high side of octane range at this point, beginning to work my way down.
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