Quote Originally Posted by BurnTire View Post
There is both leaded and unleaded race fuels.

I use VP 109 unleaded.

Race fuel is not needed unless you are running a power adder (blower, turbo, or high compression race motor) with a race tune.
So the vp-109 is'nt considered race gas? You have a blower don't you? I ask because all that is avaliable here at the pumps is 91 octane, obviously no lead. How high of octane can you get at the track with no lead? If you did'nt have cats, what would running leaded 113 octane be like? Could you run more boost and less timing on a race tune? Or would the lead mess with somthing else? Oh whats the vp stand for?