Whelen (Asphalt) Modified - Mach 1 Raceway
Front minimum tire .800" width, .825 minimum dia. Rear minimum tire .800" width, .880 max. 1/8" (.125) off setting is allowed. Independent fronts allowed. Whelen Modified type body, can be a Reality Raceway, NY Modifieds, Jer's bodies or scratch built. Rear panel is required. Spoiler a maximum of 5/16" from deck panel.