The NMCA Technical Committee made a rules revision today in Xtreme Pro Mod. The adjustment includes a base weight change for the small-block screw blower combination. This adjustment is effective immediately, unless otherwise noted in this document. The 2020 NMCA Class Rules and all Rule Revisions/Clarifications can be found here: https://www.nmcadigital.com/2020-event-info/class-rules-payouts/