I took the factory oil cooler off and put the standard adapter back on (piece the oil filter bolts on to). I took the piece from a 90 block that did not have a cooler. Now I started it up and oil pressure is fine but when I hit the gas it peggs the guage way over 60psi. Is it possible that I put the piece in the wrong way? Update: I still have the problem. I spun the adapter around and it still did it, tried a new one and still have the same problem. Oil pressure at idle is fine and when I hit the gas it jumps way up to over 60 psi. Anybody have a clue what is causing it??????