Lifter clearancing

Len, whos set up is that again? Nevermind, I re-read MP, AKA, Crane. Right?
MP race block right.
Stock blocks lack proper clearance?
I thought someone out there, Crane and/or Comp Cams have drop in units. I'm sure there not race rollers though. (If I'm right and remember correctly.

OK, why is it the bar is on that side and not the other.

Can someone surpply a picture of an Isky set up?