i have a gen v block 11:1 comp.my oil pressure is at 50 at cold start,but by the time i go across the lake it drops to 35 psi running.if i run it hard the oil pressure will be at 35psi running then about 15 psi idealing.after i idle for awhile it comes back up to 35 psi.like i said it is a gen v block so i heard the oil pressure is lower in the blocks.what could be going wrong.