The NHRA Technical Department has announced the addition of two new combinations to the E3 Spark Plugs NHRA Pro Mod Drag Racing Series presented by J&A Service for the 2020 season. The two new additions will  include a 526 cubic inch centrifugal supercharged and a 960 cubic inch nitrous injected combination.

The Centrifugal Supercharger combination will be limited to the Procharger F3R/X-140 head unit (part number PC314A-140/PC316A-140), choice of three different ProCharger Crankdrive gear drive units  (4CD-BAE-3-1.40, 4CD-TFX-3-1.40, 4CD-NON-3-1.40,4CD-BBC-3-1.40) and a inlet bell mouth (part number AF006A-027).  All Centrifugal Superchargers must remain unmodified and factory sealed. Intercoolers will be prohibited.

Additional rules will be released in the next few of weeks.