IOts the amount of
oil you pump that costs power, not the pressure---sort a like torque and horse power---
The old 10 # per 1000ppm is a rule of thumb that has been used for years, even by me, it only means that if you have 10/1000 that you have flow which is what counts
Even today, with out 500 mopars we see very little pressure indicate from running very lite
oil, but the flow is there---too bad we don't have flow meters instead of pressure guages
The FE engines are just like all other engines--the crank don't know what the valve cover says--
It is not PRESSURE that keeps the rod bearings off the crank pin, it is the shear strength properties of the
oil
Non foaming oil has additives that break down the shear strenth of the oil film--don't run them
If you have a foaming problem, your oil system isn't what it needs to be
Restricting the oil to the top end is one of the worst things you can do to an engine
Got work to do
Jerry