You're right I have never used nitrous, but I figured since NO2 is basically just giving you more oxygen to burn, you would need to match it up with enough fuel.

On a side note:

Is there a reason that everyone says nitrous is really that bad for the motor? I may be missing somthing here but isnt it the same as a turbo or s/c in that your forcing more oxygen and fuel to be burned? How is it more dangerous? (sorry for the thread jack dude)