oiling mods for dummies

Ain't read the posts yet but I'd get 2 sets of main bearings & use the upper halves so you have full grooved main bearings or I'm sure there are full groove sets of mains somewhere. I ain't tellin you anything you dont already know but either the passages are inadequate or the psi is too low or too much vol is being used where it shouldn't be or a combo of one or all three. Post how it turns out.