Well... ha!!! There may or may not have still been some racefuel left in my tank that day..... haha!! And all the other tunes he has done on his dyno were on our crap alaskan 90 octane pumpgas. My tuner was even impressed with the power my car made that day, and he didnt even get carried away looking for power. It was 20ish hp above what other similar sti's have done on his dyno. His shop is also at prolly 200-300ft of elevation and it was a cold alaskan march morning. But, it is also a dyno, and any number someone gets is subject to objection.. haha! I know my butt dyno is much happier with how it runs now than the way it ran before, and i feel a lot more safe about driving it til i have more supporting mods installed.You have as much HP as I do on E85 and supporting mods. Gotta love those Mustang dynos!