What is most safe boost you can run on 93 or 94 octane gasoline? I am talking about with a really good tune , great fuel delivery system and all the precautions? I run 18psi on pump and 24 on race gas. I see people running over 18 with no problems but how long can you do that before something blows up? I was hopeing for like 20-22 on pump and 24-28 on race gas. Let me know what you guys think. What is your pump gas boost like?