Well, I got the right lifters from Isky. They have two large feed holes. I have a .060 hole in each lifter bushing. The feed holes on the lifters are 90 degrees away from that hole, but oil flow to the pushrods is too much and oil pressure with hot oil is only max 50 psi at over 7,000 rpm at the stripe. So I need help figuring out how to restrict these lifters just enough to still feed the pushrods and keep the valve train alive, but not cause the loss of pressure. Can I block one of the two feed holes in the lifters? There is zero oil going through the spraybars now, I blocked them in an attempt to stop the pressure loss. That didn't do enough to help bring back the oil pressure.