Custom ground camshaft, low power

Fst73_360 said

whats your compression? If your IVC or ABDC is 76 unless you have 11.8 compression you will not have have 8.5 DCR which will give you power and TQ, But you can have lower DCR. You just need to know what DCR you are right now meaning IVC ABDC, Compression CC of head

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I was using a compression calculator and had all numbers except the exact piston deck clearance. I'm running stock forged 1970 crank, stock rods (resized), kb237 pistons. I know there is some variable in actual engine block deck height which can affect my piston to deck clearance but I should be close to 0 deck height with my pistons. I plan on getting an actual number next time I have the heads off. I was coming up with 10.35 or 10.65 to 1 depending on my unknown variable. When I plug this into a dynamic compression ratio calculator I come up with 7.39 or 7.60 to 1. Is 8.5 DCR the magic number I should shoot for? I'll check my actual cranking pressure today if I can get out to the garage.