oiling mods for dummies

Without writing a book about our motor-we just had it rebuilt, the rebuilder missed something and we had 6 passes on it and no oil pressure at the last run, shut it off pulled main caps -the mains were fried and so were the rod bearings. So the builder missed ir screwed something up it is at another build here in wis. And we have it torn down-i want to do what mods i need to so we can get as much oil to the mains and rids as possible, we run pro class-7000 rpm max-yes spray bars will be full time -the engine originally came with spray bars the **** build took them off-we did not request it-the car ran flawlessly last season 66 some passes not a problem all we wanted was the motor re ' ringed and bearings so he screwed it up somehow-and yes he specializes in mopars but im not taking it back to him - thanks steve