Quote:

Ok, I read that on the custom head they move the exh 2 degrees for larger valves, but the seats dont seem to be oversized



the method of mesurement may be misleading .
if they are fresh heads the seats may not be done yet.
measure another head with a valve of known size. wedge or hemi. then see how those numbers work out in regard to what you have on the Hemi head

home of the
Sox and Martin Hemi Duster