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Re: Which head is which
I wouldnt waist the money on GT-40's. They hardly flow better than stock heads. Plus after you have all the machine work done to used heads, cleaned, match ported, valve job, new valves if needed, your looking at a $500 machine shop bill. GT-40's : $300 + Machine shop: $500 = $800. You could get some pretty decent flowing Rouch heads and be better off if you dont want to pay the price for AFR, Edelbrock, TF, ect.
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1969 Cougar
357w & TKO - 475hp
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