Racers, rules for the modified tires have been updated again. The modified class Will require IMCA stamped G60's. We apologize for any inconvenience this may have caused. New information directly from the manufacturer has helped us determine that the un-stamped tire could have some different characteristics that could be construed as performance advantages. Check out the rules here: http://www.longdalespeedway.com/downloads/get.aspx?i=504043
Contact Shawn Brassfield 580-320-3550 with any questions or concerns.