What gas should I run in my raptor? I have a pro circuit slip-on and a k&n filter with no air box mods. I didn't rejet, i'm not sure if I have to. I checked the plug and it looks ok, a light brown color. I have a dynojet kit that I bought with the pipe but If I don't have to I don't want to do the work, cause it looks like a bi@ch! I'll just get my money back for it. But my real quation is will running a different grade of gas make it run richer?

 

I've been running premium pump gas, 93 octane i think.

 

From what I have read and studied you will get the most power out of the lowest octane you can run without pinging. But then again I just run super 92/93 since its only a couple bucks and prolly cleaner (but I doubt it)