3 questions about 6s

i remember it being a little on the tight side so .002 sounds bout right. (mains and rods)

also radiused the feed hole on the rear cam journal on both sides of each hole

That's what we were shooting for. .002-.0025 I usually only get worried that tight on big diameter journals that we are spinning fast like Pontiacs. But I don't fool with too many GM cars anymore. ;)