@
ETM_Shaman
Have you considered testing the stock pickup tube pressure or inlet pressure with 0w20 or even 5w30 instead of your 10W40? Perhaps the heavy grade oil was the problem all along.
Skip to 1:20. If the cavitation you are trying to resolve is from starving the pump then couldn't higher viscosity oil be the problem?
[ame]https://www.youtube.com/watch?v=iau3DuphVqY[/ame]