New to Nitrous

5.5psi flowing through a .073 jet. Do it at the track before you make your 1st pass. Bottle pressure @ 950-975 purge it down but don't go below 900. 950 typically works best and good for solenoids. Make sure you have colder plugs pull enough timing. Personally start with single stage 150hp and learn on that. And at that level you don't need a lot of extra fuel a fuel log with 2 regulators and done. And should drop approx. 1 sec pending car.
Good luck