The Minnesota Street Rod Assoc. (MSRA) has a link to locations in Minny & western Wisc selling non-oxy fuel.
http://msra.com/wp-content/uploads/2...on-oxy-May.pdf
Also here is a link they recommend for searching all states and Canada.
https://www.pure-gas.org/
I use BP 91 Premium non-oxy whenever I fill up near home.
I had a bad experience several years ago in my '93 TTZ using ethanol laced fuel that destroyed 3 injectors. So I replaced all 6 and swore I would never use this again in my Z.
I will not make that mistake again in my '14 Nismo, even though the plastics used in the injectors has most likely been improved.