NHRA Technical Department Makes Parity Adjustment Changes to the FLEXJET NHRA Factory Stock Showdown

Based on the FLEXJET NHRA Factory Stock Showdown performance numbers from the NHRA Midwest Nationals at World Wide Technologies in St. Louis, IL, the NHRA Technical Department is reducing the supercharger overdrive by changing the upper supercharger pulley for the 2021 Dodge Drag Pak from 3.500 inches to 3.750 inches. The minimum weight will also be reduced by 50 pounds, from 3575 to 3525.  These rule changes 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.

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