I have read all the posts but haven't found one with the exact same symptoms as me. I would love some input from the experts here on the board.

The history of the engine is somewhat unknown. I bought a 1976 J10 from a guy. He said it had been rebuilt with a mild cam. I ran a compression test on it and got 120 psi on all cylinders here at about 6000 ft above sea level.

I just finished swapping it into my Jeep. It is running a little warm.... about 210 under load. I am going to flush it with BG cleaner.

My big problem is that at startup I get about 30 psi oil pressure. As the engine warms the oil pressure drops to about 0-5 psi. I am going to pull the filter and get a napa gold. I will check the bypass valve then also and try to check my clearances. Does this sound like a oil pump issue or a cam bearing issue?

Also, if my clearances are bad, I may try and grab a timing chain cover off a cpl of 86 and 87 360's my friend has in his garage. Will these covers interchange?

Any thoughts on what you think is going on and what I should check. Thanks!!