planning on useing #62 heads 2.11 & 1.77 valves on my 1976 pontiac 400 4-speed car running flat top pistons with valve reliefs and chamford edges any idea on compression useability with pump gas? what cam would be good with stock springs want to maximise use of 72 cc heads the intake is from a 1978 t/a with no emissions (e.g.r.) and stock carb with headers also have a good set of 6x #8 heads for sale in order to pay the machinest for the #62 heads
Thanks Ron
