32psi, overheated, put new fluid in and then made a 129mph pass no overheating. Stock 125k composite headgasket and stock 125k head bolts never touched. If the guys at magnus say they aren't really needed, I'll take their word for it and I have seen with my own eyes proven time after time stock bolts is fine.

Not to bash you 16ggst but 30psi on a 16g and 32psi on a turbonetics t61 with hks 272/272 cams intake and exhaust is two totally different worlds. Your dealing with alot more stress and air flow not to mention other things.