Non ethanol or not ??

Maybe more than you wanted to know about motor gasolines, but perhaps the most thorough readable article.
Chevron's motor-gas-tech-review.pdf

260 GT is an oxygenated fuel that can be sold for street use. Fuels - Sunoco Race Fuels
Fuel Selector - Sunoco Race Fuels

They're not the only game in town either (depending on where you are).