Attention Richmond Gear Factory Stock Racers The 2018 mid-season rule changes will take effect AFTER the NMRA SuperNationals at National Trail Raceway (Hebron, OH) due to the incomplete eliminations from the CJ Pony Parts NMRA Ford Motorsport Nationals last month. The Nitto Tire NMRA/NMCA Super Bowl of Street Legal Drag Racing will the first race to feature the 2018 mid-season adjustments.