I am having oil pressure problems with my bbc . have 9 qt. canton
oil pan,hv pump,filter adp. with no bypass,k&n oil filter and using
kendal 20-50w motor oil. all is ok to 5000 rpm 80psi . when i stand on the gas 6000rpm + oil pressure starts to drop and will
hold @ 20psi then when i back off to 4000rpm and hold @4k oil pressure climb back up to 80 psi . block temp. @ 170 deg.