High Volume Oil Pump VS Standard Oil Pump

As long as you adhere to factory crank/rod bearing clearances, I don't believe that there is a need for a HV pump. The HV pumps used to be mandatory when running a large clearance strip engine. No one really builds that way anymore. The thinking used to be that the large clearance would reduce friction, adding HP on the top end.

I have heard that the bypass from a HV pump can aerate the oil as it shoots it back into the pan, but since I don't have a "clear oil pan" to confirm this nor am I small enough to hang out in there, I can't say for sure that it's true. I really don't think that having a HV pump will hurt anything, but as Chuck says, it's just a waste of energy.

If you're serious about the strip, baffle your stock pan with some sheet metal or get a baffled pan. Not having the pan baffled is most likely the cause of any oil pressure drop under acceleration.