Casite used to make a carbon blaster treatment they called "P.D.Q." It was used by attaching the 8 ounce can to the carb inlet with an adapter block and blocking off the incoming fuel line. Then the engine was run at a fast idle on the contents of the can and repeatedly snap-accelerated. The engine would cough, snort, and rattle, sort of like the worst case of detonation anyone could imagine. Huge clouds of carbon would fly out of the tailpipe!
In the early 1950's our family race car ran on an alcohol/Hydrogen Peroxide mix, but instead of the 2% by volume peroxide used for first aid, Dad used technical grade stuff at 20% concentration. It was so corrosive he used a stainless steel pony keg for a fuel tank, ran stainless fuel line all the way from the tank to the carb, and ran the carburetor dry between races to keep from eating the bottom out of the float bowl!
Jerry
