I just put a super phat shaft 62 on my truck and was wondering what kind of boost every one else was running on just a stock head gasket. I have been told that it will hold 50 but not to push over that mark, any one know different. The SPS 62 is sweet and has plenty to give from what I have seen the last two days. Thanks to Industral injection's brady for taking his time to help me. Thanks for any info you guy can give.