I have an old car that has 10:5 / 1 compression and needs high octane fuel. I have been using 93 Shell with a 32oz bottle of Torco with mixed results. I still get some pinging which is no good. We are in Frisco so this is the area where I wold like to find a decent source for race fuel. Ideally I would want 100 Octane Premium with no corn. Problem is that I will need to purchase a portable tank to carry the fuel as the car I have is not always in road worthy condition but still needs to run to tune. Anyone have a source for race fuel that is close to Frisco?