I know the rule of thumb is .080" for intake on a steel rod engine. Here is my problem/question. I took the 452 heads off of my 383 and put on a set of eddy 84cc heads. Did a valve/piston check with checking springs and dial indicator. Exhaust is fine. Intake is terrible at 5* ATDC to 10* ATDC. Now the way I see it the intake valve is chasing the piston, and shouldn't be a problem. Should I change my way of thinking or button her up? What do you guys think?