Based on E3 Spark Plugs NHRA Pro Mod Drag Racing Series Presented by J&A Service performance numbers from the last portion of 2018 through the first race of 2019, the NHRA Technical Department is reducing the minimum weight of Nitrous assisted entries with a lock-up converter from 2,450 pounds to 2,425 pounds. All other minimum weights will remain the same: (Nitrous-assisted without a lock-up converter - 2,425 pounds), (Supercharged entries - 2,600 pounds) and (Turbocharged entries - 2,650 pounds). This rule change will go into effect immediately. NHRA reserves the right in the future to make additional rule changes to control performance and maintain parity in the category.