Ok, I have more time now... Stoich for a gasoline engine is 14.7:1, that is what most modern cars are tuned for at idle and cruise ranges because it is the ratio that the engine is most efficient (ie maximum power with minimum emissions and minimum fuel consumption). However at WOT we typically tune slightly rich (~13.5) because the extra fuel prevents detonations from our aggressive timing curves it also helps with cooling the combustion chamber and piston tops (further working to prevent detonation). Use of nitrous, turbos, or super chargers require an even richer mixture. While 14.7:1 will make more power, it is not safe.
So in short "stoich" for a 2 stroke is still going to be 14.7, BUT because the oil mixed with the gas lowers the octane of the fuel (thus increasing the chances of detonation), and the engine runs and high RPMS for extended period of times (increasing heat in the cylinder/combustion chamber and chances of detonation) I know the 2 stroke will require a richer mixture than required for max power... I seem to remember hearing 12.5:1...
