i have been running a 250 hp shot successfully for two years.you should have at least a holley blue,with a preessure regulator and fuel pressure guage.it should be set at 7lbs running,even idled up to 3000 rpm,so you dont get pressure drop .you need at least five pounds of pressure for nitrous.if you drop and lean out youl burn up.nitrous is awsome to use as long as you are rich enough.remember, nitrous itself is not a combustable gas but what it does is brake down fuel particals smaller so that you can get more fuel into the cylinder ,which then exchanges it to more energy.it also cools down the fuel charge making it more dense. important: if you have ignition system with rev limiter.disconnect the rev limiter.should you blow a shift or drvehaft and hit the rev ,it will shut down the ignition allowing the cylinder to fill up and when the ignition kicks back in ,kaboooooom.blown motor......torino