it should hold together ok on 10psi....it will go bang if it annoys me enough for me to decide it doesnt really need a wastegate

but until them i'll just assume it will be right

compression is ok IF you pull enough timing out
any boosted engine will lunch itself if it knocks (even once) it doesnt care if you have forgies, a metal head gasket or arp studs
you cant have boost and compression and timing
use the old bolts if they are within spec

dont have the specs to go off and the guy that did the head said he didnt have anything to measure the bolts properly....and found some ARP studs for $200 delivered so will just go with them

i'll leave the computer to sort out any knocking issues...i assume it has a knock sensor for a reason