TR6's at 1 step colder is what i go with. make sure you have a good set of plug wires. dont use any v type electrodes, or platinum etc. just standard copper core. i use a MSD ignition because it has a step retard with step off delay. which means my car isnt a dog with retarded timing when im off the nitrous, and i dont have to worry about a flip switch tune. you need a bottle heater, and a purge. pressure guage is a must. i run a fuel pressure guage instead of a safety switch but i would suggest the safety switch, get the one set at 30 psi.
