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Re: compression ratio on a stock 1985 C20 350
Thanks for the info. I was looking into buying some heads and trying to decide between the 67cc or 76cc combustion chamber. World Products SR 170cc intake runner.
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 '84 Suburban C10 Silverado - laying pinchweld to the ground on 22/24.
/Porterbuilt / Accuair / Bonspeed / Landsail / Auburn Gear / Richmond Gear / Moser / Raybestos / ProMaxx / Edlebrock / Street Demon / Taylor Wire / K&N / MSD / KillMat /
SOLD: 1985 GMC Sierra Classic 2500 3+3 Crew Cab Long Bed
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