I know where 82waggy is comming from on this. The valley area oiling mod is, in my opinion, more of a high rpm mod to keep the pressure and volume at the rear mains. For a street / off orad vehicle nor seeing high rpm it's not needed. Can't hurt either but the real benefit can not be utilized. I like the high capacity oil pan and also an oil cooler. Also a Bull Tear front cover with the pump end wear plate is a great improvement over the stock aluminum junk. In all the AMC's I have taken apart, I have never seen one that did not that the oil pump cavity and or the end cover gouged up. This is a prime area to lose pressure, gear to wall clearance and gear end to cover clearance. When these open up due to gouging the pressure goes south in a hurry.

Just my two cents.