I like to have a little bit more bearing to crank clearances than a lot of other engine builders, I do use and like the .0010 per one inch of journal diameter so if I end up .0024 to .00325 on the stock BB Mopar rods and .0028 to .0039 on the mains I'm good
I've ran them looser and tighter on both street and race only motors, to tight will spin a bearing a lot sooner than to loose will, mains or rods
I like and use both 0W20Wt oil 5W20WT oil in my street cars and I now use the lightest weight VR 1 racing oil I can get, currently 10W30 Wt.