I've got a bone stock motor with some supplemental upgrades, and all I can say is that I am impressed. Thanks to Jrichker's post, I decided to try the toluene in my gas tank. My octane as of right now is about 95.6. On the first test I put it in and left the timing alone, and I did not see any difference. The next trial I advanced the timing to 16* and definately felt an increase right off the line, and above 3500rpm. Went back home and decided to advance the timing to 18*. I got detonation that time, so I backed it back down to 16*. And this is in 110* arizona heat. The engine runs smoother and cooler. I can keep my hand on the upper intake for like a minute, its that cool. I would definately recommend this to any one who is using a power adder. And thanks jrichker for the heads up. 
