Poor hot idle caused by ethanol gas? Whaddya think?

chilsam said
The 73 460 n my 79 F250 4x4 will not idle on anything other than PHILLIPS 66 premium that has TRACE alcohol left over in system from the lower grades...same goes for my 82 Harley Shovelhead FXR

I see you list your location as "cent IL". Where in central IL are you getting non alcoholic gas? Around Kankakee, I can't find it.