What rocker arms are involved here?
They are not all the same geometry despite being called Pontiac
I have a set of Comp ultra gold high end rockers that fit like socks on a rooster, I set them on the shelf and bought Harlan's that fit perfect, old school E'heads original valves
I put those Comps on a #13 iron head with a RA-IV valves = much better fit with the valve tip closer to the stud
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