Post by
spider_slayer »
https://forums.nicoclub.com/spider-slayer-u20388.html
Tue Jun 07, 2005 11:45 am
all depends on your engine and how it has been treated. i've heard guys on here running around 15-18psi on the stock head gasket. but if your engine has been mistreated and even a little warped that greatly increases the chance it will blow. if you are planning on running more then 15psi daily a metal headgasket would be a good investment.