after i installed a nitrous kit and colder plugs car seems to run a little rougher . before the plugs and nitrous it seemed smoother around town city driving and cruising . its weird cause cruising and when i start accelerating it seems to maybe miss slightly and studder a little it has a little what feels like more than just a little cam surge at times. ed wright dyno tuned the car before the nitrous thats why i think it may have a small miss it can be heard through the exhaust but is hard to distinguish from surge. its also crazy at wot in whatever gear it feels normal smooth as can be.btw i installed a new converter at the same time went from a 3800 edge to a 4200 vigilante. that doesnt matter though right??