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Old 01-13-2018, 09:08 AM   #93
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Join Date: Feb 2006
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Default Re: 1971 Buick 455 GS F/SA G/SA Build

I see your running a HEI and no spark box, and I don't see a pcv?? Have you tried other set ups?? Just curious because on my street cars both showed HP on the dyno.
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