I was doing some research on possibly adding a 100 h.p. NX nitrous kit to my Z. I do not have many mods but a 100 h.p. should do the trick for a 12 sec. Z. What is needed to run that much juice ? Is retarding the timing a factor ? can you use stock fuel system or does it need to be upgraded ? What kind of sparkplugs ? I just ran my car this weekend it was alright 13.96 @ 99.88 on Dub's. If 12 sec can be done off 75 h.p. i will go that route to stay away from heavy spray. thanks