Ok well Ive went pretty much all out drag on my car and now its time to get the nitrous figured out. Its a 383ci solid roller but its still fuel injected. Im having a direct injection kit installed on the car and will be running a 300 shot. I am going to be leaving on the transbrake and want to spray out of the hole so the way I think Im going to do it is put a 2 step on for the transbrake and then a window switch on also with it being set 200rpms higher then the transbrake rpm so as soon as the release the transbrake the nitrous will kick it as soon as it hits the 200 more rpms. My question is do what would be the best route to take, like should I go with a progressive controller or just spray the full 300 instantly when the rpm reachs the desired rpm? Also what about timing retard for the nitrous?