Oil system myths

Hmm. Just to summarize my feelings:

1) Cavitation is cause by the fluid pressure reaching the vapor pressure of the fluid and vapor bubbles forming. Look up the definition of cavitation.
2) I've never seen an automotive oil pump that is not a positive displacement pump.
3) ANY oil pump can "suck the pan dry" if the oil return flow to the pan is less than the oil pump discharge flow.
4) All pumps create a low pressure area at their suction. But the maximum pressure differential is the pressure at the surface of the fluid minus the pump suction pressure. That's why for water the maximum theoretical suction lift is 32 feet from an atmospheric supply.
5) I'm no small block guru but the few engines I've disassembled from 60's era 273's to mid 70's 360's, none of them had oil pump base gaskets.
6) Looking at the SB timing chain oiling variations over the years I have no idea which version is superior. To me the recessed #1 cam bearing on a B/RB/Hemi is a better system.
7) If you have a HV pump, and you have less oil demand than pump capacity, the pump pressure is going to rise until the pump relief opens. So you are recirculating oil from the pan, through the pump, and back into the pan. This does nothing but consume horsepower and increase the load on the intermediate shaft/gear.

There, I'm done spouting.