The NMCA is happy to announce the following sponsors will be returning as official and exclusive providers at all NMCA Muscle Car Series Events in 2017.   E3 Spark Plugs: Official Spark Plug of the NMCA Miller Welders: Official Welder of the NMCA Mothers Polishes: Official Car Care Products of the NMCA Performance 2-Way Racing Communications: Official Radio of the NMCA Trailer World: Official Trailer of the NMCA VP Racing Fuels: Official Fuel and Traction Compounds of the NMCA