I agree. He may not remember, but some years ago I was struggling with my friend's 383 which had loose main bearing shells even after having the block line-honed. Everything measured correctly. He suggested King bearings (if I remember correctly) and it solved the problem. I was able to get my buddy's shortblock built so he could move on with the project.
I just found the old post because it was bugging me that I couldn't remember what type of bearings. It was Federal Mogul, not King.