Join Date: Jan 2006
Location: Orlando Florida
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A set of early C9, D0 heads with the smaller 75cc chambers would boost compression - or better yet some aftermarket aluminum heads (which would already have the screw-in-studs, valve springs, larger valves and better flow, hardened ex seats, better seals, etc.).
The bump in compression (to around 10.5?) would certainly improve performance - although 10.5 might be a little high for street use/pump gas.
1982 F-250 XLT 4x4, 5800lbs, C6-BW1345, 466 cid, 9.5:1, TFS290 PowerPort heads, Crane Hyd Roller Cam (278/286 adv., 216/224 @.050), Edelbrock Performer, Hedman headers, QFT HR-780VS, MSD6A and Billet dist., NOS Cheater system, 4.56 gearing, 7" lift, 37" tires.