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Search took 0.02 seconds. Search: Posts Made By: petes67bird
Forum: Pontiac - Street 12-12-2024, 11:19 AM
Replies: 94
Views: 4,733
Posted By ta man
I would confirm that the harmonic balancer hasn't...

I would confirm that the harmonic balancer hasn't slipped. Timing can be way off.
Forum: Pontiac - Street 12-12-2024, 10:27 AM
Replies: 94
Views: 4,733
Posted By 78w72
Others have mentioned advancing the cam or timing...

Others have mentioned advancing the cam or timing curve & Im sure that needs to be checked... but on an old 455 6X-4 heads ~9-9.5:1 comp I had in the 90's on a very tight budget build with a mild...
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