question regarding wet system
 

I have a slight question regarding a wet nitrous system in our cars. As far as I know we have a returnless fuel system so there is only enough fuel at the injectors that the pcm calculated that it needed. So wouldnt just tapping into one of the fuel lines in our engine bay just cause us to lean out while spraying? Someone said this to me yesterday and I was curious on what everyones input was.

I don't really understand what you are asking. A wet systems adds n2o and fuel. How would that lean it out?