THE REASON i WANT A HIGH PRESSURE PUMP IS BECAUSE i HAVE BEEN TOLD NOT TO USE A HV WITH STOCK PAN. EVEN THOUGH I HAVE BEEN TOLD 5-10 PSI AT IDLE (800RPMS) IS O.K. ,IT MAKE ME REALLY NERVEOUS!!!! THAT IS WHY i WANTED TO RAISE THE PRESSURE. i WILL INSTALL A HV TOMMORROW THOUGH !!!!!!!!!!!! I WAS THINK ABOUT RUNNING 60W RACE OIL SINCE i WILL NEVER BE DRIVING IT IN THE DEAD OF WINTER(INDIANA). IS THERE ANY PROS OR CONS TO THIS??? THE MOTOR IS A NEW REBUILD, ALL THE PLUGS ARE INSTALLED, BUT I HAD THEM BUILD IT "LOOSE" ON CLEARENCES, BUT BUT ONLY ON TH HIGH END OF NORMAL. WHEN IT IS COLD THE PRESSURE IS FINE, ONLY AFTER DRIVING IT FOR 20 MIN;THE PRESSURE DROPS TO 5-10 @ IDLE, DRIVING AT 2300 RPMS IT IS 40-45 PSI. IT IS IN A 39 CHEVY COUPE SO THE WHOLE FRONTEND GETS HOT, IDLEING DUE TO RADIENT HEAT. I REALIZE THAt the oil is thinning resulting in the lower pressure, this is my first bbc. why don't they make high pressure oil punps like they make for sbc??????????? i am currently using 15w40 oil