Oil Pressure Issue?

DartVadar said

When I was priming the motor before installing it, the pushrods would be so flooded with oil they would have about a 1/4 of oil thickness going down along them. The springs were flooded with oil too. The oil would make the spring look solid if that makes sense. I mean everything is definitely getting oil up top! lol

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If you have the standard cam bearings which are not grooved, and no groove on the cam journals, you will have the 'timed' or interrupted' oil flow to the heads. If this is the case, and if you primed with the cam holes lined up so that one head was getting oil, then the observations above are pretty meaningless for actual engine operation, where the head is getting oil pressure only about 5% of the time.

And FWIW, your pressure numbers are good. With a heavier or lighter weight oil, the pressure where the relief valve opens is not going to vary much. So a heavier weight will not raise the peak pressure much as you seem to expect; it will just reach full pressure at a lower RPM with a heavier weight.

Keep in mind that a lighter weight will flow more volume and thus tend to cool internal parts better.