This seemed to work: Race Gas
 

A good friend of mine owns a company that has just developed this product:

http://race-gas.com

He gave me a can to try at the track last weekend. It did seem to give me more power, so I am going to use it when at the track. It would be interesting to see some dyno results with our cars. Other cars have been seeing very good gains on the dyno.

The can is a bit fiddly to work with, and I spilled some on my car when I was filling up. It cleaned up well with a little spray on car wash though. This stuff is a bit nasty (it dissolved the adhesive that held in the screen on the metal funnel I used), so take precautions. It could not be easily put into a plastic container for this same reason. My friend assures me that once the rectangular cans are sold out, he has a new container design coming that should address some of these issues.