What about retarding the timing? I heard that the timing should be retarded for safe nitrous use. I am looking into the 75 shot by ZEX like you recommended. So all I am going to need other than the kit is one step colder plugs?? I thought there was more to it than that. I heard it is also not good to spray under 3,000 RPM. I want to be 100% safe and fast as hell when I use nitrous. So I do not need an upgraded ignition system, upgraded fuel pump, or FPR for the 75 shot. Could I just use an aftermarket FPR by like B&M just to be on the safe side for fuel delivery or would it not make a difference?? Your reply would be appreciated.