Oil Pump

pt70 said
Mopar Performance recommends using the chrome-moly intermediary shaft with the HV oil pump.
High volume pump = 25% more torque
High pressure spring = another 25% more torque

A HV oil pump pulls a quart of oil thru the pickup tube in one second at 7000 rpm. Combine that with oil sloshing backwards when leaving the line or sloshing forwards with hard braking. And add in the oil winding around the crank. Now you can imagine why in a borderline situation the use of a HV oil pump could cause issues. Baffles and larger oil pans are important.

That’s what it CAN pull IF the system volume requires it. It can only move as much oil as the system leaks.

The other issues you mention have nothing to do with the pump sucking the pan dry.

Windage is what it is by rpm, the volume of oil leaked at the bearings do oil flowing back down to the pan.

A poorly designed and baffled pan has issues regardless of what pump is used.

I’ve never primed an engine that required more than a half inch drill motor. That’s not even 1 hp.