In an effort to keep the power adder playing field level, the NMRA Technical department has made some adjustments in Edelbrock Renegade and ProCharger Coyote Modified. These rule adjustments are effective immediately as of April 19, 2016 and will be in effect for the upcoming Wyotech Ford Motorsport Nationals, presented by Juggernaut Power. http://nmradigital.com/dl/rules/ren.pdf http://nmradigital.com/dl/rules/cm.pdf