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07-23-2024, 11:58 AM
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#4 |
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Senior Member
 Join Date: Mar 2003
Location: Colfax-California
Posts: 8,530
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Re: TBI head swap to 180 AFR
Wow, that's funny I just dropped off some 993 heads at the machine shop with the new roller cam valve springs. How much compression do you think you lost? AND how did you convert the intake manifold? I was considering taking a smog legal 4 bbl manifold I have from edelbrock and having the top of it shaved off and welding in a 1'' thick helix throttle body spacer
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