i just replaced my stock cj heads,pi intake,and stock adj rockers with bbm heads rpm intake and hs rockers.i fired it up after the swap and it sounds wonderful but i used to have 75 psi at startup,but it now has 60-65 at startup.i had restrictors to the rockers on the cj heads,but the bbms i did not touch them.any reason on the oil pressure loss,or is it nothing to worry about?