You ran a 4.62 in a Monte Carlo I guess that is what 35 pounds of boost will do, your video made me laugh I love the way that motor tries to idle. What caused the bearings to fail, detonation or an oiling problem? Who is the manufacturer of the crank support? I went with a turbo on my 383 because of the sbc problem with breaking the crank snout.
I hear you on the tune, boost and tune are deadly important, the short block is complete, I have heard you can o ring the heads, this is not a budget build but we don't want to waste money. When you say an older gm blower, are you saying an older design opposed to one that is loose from wear? Good information thanks to all.