New to NO2... need some help.

If your only going to be running a 75 Shot i agree with 91GTturbo back the timing down some and get some colder plugs, with this setup you should be fine

Im not exactly sure about this but what i think the purge valve dose is clear all the nitrous lines of air, ensuring that your only injecting N2O into your engine, if anyone wants to correct me on this? im preaty sure thats what it dose though

I would suggest getting a bottle blanket or heater if your going to be using it during the winter months or late at night, but otherwise you probly won't need them

You should probally think about getting a Bigger pump though, because you probally will up the shot eventually (everyone dose) and you don't want to take the chance of running to lean