what a fruitcake, i ran an F4i on 27 psi from 60 mph and got him pretty good, i know another fwd dsm'er on this board with a smaller turbo setup (at the time being) than i had went fender to fender w/ a gix 750, and i know of at least one other fwd dsm'er on this board who also has taken a few 600's, sounds like your a typical huge headed bike owner who needs a fast car to deflate it a little bit for ya