I have a 92 gt with a stock bottom end, and msd cap, rotor, coil, and ford racing 9mm wires and I use 93 octane fuel, along with other bolt ons but would I need anything else to use this kit and how much would be safe 50? 100? I'm sure anything over that would not be safe. And what about timing?
You would not need anything else for the kit to function on your car. There are however accessories that you can purchase to improve the safety an performance of the kit, for example a blow down safety tube, bottle heater and purge solenoid are all popular upgrades that people add to their nitrous kits. The most common "shot" used on stock cars are 100 hp or 150 hp settings. Timing will need to be adjusted for the larger hp settings. Nitrous Outlet has a great tech line available to answer any specific questions about tuning your application to get both optimum performance while still being reliable as well.