Couple of questions using Speedmaster heads

I ran the studs down finger tight but when I put the nuts on most of the studs did not have full thread engagement. I actually had to back them off some to get full thread engagement in the nuts.

I did use the ARP stud lubricant which I HIGHLY recommend.

Same here. Seated all studs down finger tight, and then backed them out to have full thread engagement + 1-2 threads protruding.