Dizuster has a pretty good advise, I run NGK 9's in mine but I have a different set up, i run pump gas 93 in mine on the street but at the track I run C-16 waste of money maybe but to me it's good insurance I do turn it up a little from 8lbs up to 11.5lbs by my Fitech data logs. Just start out conservative on your timing and boost level till it's safe. The Fitech is pretty good about learning fuel tables as you go I really like mine.