Help with Classes/Rules in drag racing

super pro and pro you can run either a electric or a air shifter, we only go racing super pro when there is no div. 1 points races , to run pro the box has to be physically out of the car. our cuda, before we were running nhra a lot, it ran mid 9s and its always been certified to 8:50 this year I'm making him put a funny car cage in and add more gussets to make it more safe, the car now runs all out, 8:70s but we rarely run it all out,only when were not doing supergas, but still , better be safe than sorry