I have found that the arp studs are better but I still had
rear main leaks .
Have found that the block brace is a great help at reducing bearing wear and the rear main nearly stopped leaking.
Also I have found that the Arizona sump has been a big help at stiffing up the bottom end as the rails are pretty thick.
Also guys at electromotive ran dry sumps which would help as they would have run vacuum in the sump and their engine would have been rebuilt every time they went out which would help the situation.