I have just put my car on the road and I am noticing a strange phenomenon. When the car idles hot the oil pressure is about 60lbs. When I start to drive the preasure drops to about 35-40 lbs. Today I took it out and took it up to about 3500 rpm in 4th speed and the pressure droped to about 25lbs. When I bring it back to an idle it goes up to about 60lbs again. This is oppossite from evry engine I have ever had. The motor is a rebuilt LS5 that has about 3-4 hours on it. Any ideas. THanks Don.