I have been to hobby depot for model stuff a couple years ago. Is there any other shops near by in other areas of Phoenix? Have you tried any Any HO slot car races in Arizona?.
Cruisin' The Golden Era - Mobile Slot Car Racing. provided Hot Racing Action for staff of Phoenix Int'l Raceway in Phoenix, AZ; and several.
i dropped in gundemonline.org 1/4 mile track is raced friday evenings at 6pm they do mostly 1/24 slot car bracket racing run what you brung. they will.