ok, so i have a type -s head that blew out a spark plug, and i want to fix it, but the thing is i want to boost it, hard. and dont know if thats such a good idea. should i just get a new one? i dont want to blow out the threads again after new ones are put in. figured you rsx guys might have an answer for me. and should i use a heli coil? or have it welded up? i've had a few mixed answers, thanks.

 

find a new head. how much boost you tring to run?

 

i want to run in the 15 range but under 20 psi.