I agree with everything Ryan has said, did you say you are running that motor with over 100 lbs of oil pressure? If so that is way to much, take the oil pump off and inspect the oil pump bypass valve to see if it has the right bypass valve in it. It should have several holes in the side of the valve. I have had three oil pump from Melling in twenty years that had B-RB oil pump bypass valves in them, which makes the pump not able to bypass correctly like it should. That may be why your oil temps are way high like your getting. The first motor that I saw this on would blow the oil filter adapter gaskets out as soon as I rev the motor up and peg the 100 lb. gauge One of the motors was on a DTS engine dyno and it recorded 140 lbs of pressure at or around 1500 rpm to break the cam in, we shut it off after the second time of trying it and found the 440 bypass valve in that pump also Let us know what you find and do