Flyers have done gas/glow for a long time. JUST NOT ON ABC ENGINES. Gasoline burns hotter than methanol/nitromethane so higher operating temps are to be expected. It's far more common to run a gas/glow mix on ringed engines. This is not to say it won't work, but an ABC engine will not last nearly as long.

I mix my own fuel; a gallon of 20/12 fuel costs me less than $10-13 a gallon to make. I paid $55 for a gallon of nitro.