383 engine noise question

zac_F71 said

I had 70ish psi oil pressure in my 71 383 cold and hot.. with the original oil pump that I replaced all the O rings in - Mancini has all the O rings needed if you don't want to drop $100 on a new pump..

If you change the pump, change the oil to 10w30.. 20w50 is way to thick..

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It is synthetic ZRod Amsoil not regular 20W50. Didn't know how 10W30 synthetic would get along with a vintage engine since it flows easier than regular 10W30. For about 40,000 miles before the rebuild I had a different cam and Rhoads lifters which at the time required 20W50, 40 or 50 weight. I ran 20W50 and it was non synthetic. Never checked the pressure back then.