ive heard that you can gain some power with aftermarket heads with that trick too. i havent tried it myself but am looking into it, i have ported and polished edelbrock rpm heads on my 95gt. so i too am wondering if the gain will be worth it or not, if its only gonna give me 10 horse ill stick with what i have, ive read somthing about someone using this trick but dont remember where, hopefully they will come forward with some info for us.
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