Reply to "Toluene as an Octane Enhancement"

Although I am unable to provide anywhere near the scientific level of expertise posted above, I do have some insight to add.
I have had two highly modified track cars (700 hp Porsche 997tt and a 950hp Viper), and in both cases I ran one gallon of Toluene and one gallon of Xylene per tank. I don't remember the exact calculation, but I remember it working out to boosting a tank of 93 octane to around 97 octane.
I always kept the cars tuned to 93, but since both cars were pushing their limits, I liked having the extra buffer for safety.
I bagged the Viper on the track for two years without an issue before selling it. The next owner blew it up two months later, street driving on 93 octane gas.