just wanting to know what the ideal compression is for BC4 cams? i want to keep it streetable and 93 octane...i was thinking 12.1:1 or thereabout

 

also want to know

 

What's the setup? And also do you know the spec of the cam's intake ABDC?

 

probably the compression should be a minimum of 11.1:1 but for a steet car I would personaly do 11.8:1. This would probably be the best for wear of the engine and easyness to tune for pump gas and still be able to run full throttle without detonating.

 

its a b18c1, i plan on using ITR pistons, and rocket valvetrain with rocket flat valves...and remember its on 93 octane and not 91...