I got the engine running. My hot oil pressure is less than 10 lbs. at 1500 rpm. Pressure is 20 psi at 3000 rpm. I changed the oil to a 10w 30 and the pressure rose about 5 psi hot. Evidently I have an internal oil leak. But am at a loss where it might be or how to find it. Looking for suggestions or how to proceed. I have oil flow out of the rockers both sides and it doesn't appear to be foamy or have bubbles in it. I'm going to remove the intake today to look at the cam / valvetrain