Casey, welcome to the NHRA class fray…like your NSS car BTW. Changes are normally posted here…
https://www.nhraracer.com/
But you need to rely on the classification guide (see left column of linked page) because that’s what you follow.
Contact Dwight Sutherland to get access to the great info tool he created and maintains (but the official NHRA classification guide is the ‘bible’. Here’s his website:
http://www.classracerinfo.com/