It's been my experience that if you look critically at enough Pontiac heads the studs, valves and pushrods are not all in perfect alignment many times
After all it was mass production and at a certain point it costs more to make everything dead on perfect vrs dealing with comebacks in warranty
That's why on a old original engine you look at rocker arm wear at the valve you will see a wide variations of patterns
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Last edited by Formulas; 04-13-2020 at 10:24 AM.
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