I have been talking to a machinist who is telling me about turning cranks on the highside and lowside to affect deck clearance. Will this really affect compression? If so What needs to be done? I was thinking instead of milling 6x-8 heads to 89 cc just changing the grind on the crank. What effect does this have on performance vs rpm range? I know that a unmentionable engine builder

does this to his 350 buildups to get more torque and higher compression. What is the straight scoop. thanks Pontiarrg