Just wondering my 302 has about 1000 miles on a rebuild. When I start the engine in the mornings the oil pressure is on the high side and the cam (512 lift) is sounding good hitting like it should. Then when the motor warms up to to normal running temps the cam goes from sloppy like it should to sounding like a stock cam.The oil pressure is then on the low side. I cant figure it out Im running 10-40 castrol and the cam is made by Crane. Also when I first rebuilt the motor I put a Fram filter but it kept blowing the seals out so I went back to Motorcraft no more problems. I dont every here any lifter ticking are anything like that. Any info would be helpful.