Port and Polish

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01-09-2006, 03:11 PM

97stanger

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Join Date: Jul 2005

Posts: 567

Port and Polish

Is it true that if i got my current NPI heads/intake on my 97 ported and polished they will outflow a set of PI ported and polished heads?

01-09-2006, 07:28 PM

pimpmustangGT

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Join Date: Dec 2005

Posts: 191

good question .. i would imagine it depends on how far you take your port polish... i would think that you could beat it easily with a custom setup... but theyre are all dimishing returns depending on your setup

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