ok so don't use the arp studs i have just leave the factory head bolts? how much boost have people been running without lifting the head? i know a couple of guys running s2000's without touching the engine (high compression) making 470whp and so far so good. i know it's not a honda but the compression is the point. and the meth kit would be added insurance or can tuning help control the combustion temps? then again meth probably could have kept me from having to do this swap