Around what power level is main studs really nessicary and at what point is a stud girdle neccicary. Trying to look into the future and not have to pull the motor back out. End goal would be somewhere in the 750-800hp range. Just trying to do it right the first time. Already have the block O-ringed, head studs, arp rod bolts, titanium valve keepers. First shots is to be atleast 500 (hopefully) single turbo and twins down the road.