You would have to get a fuel valve, tap into the fuel line and just get a nozzle for a wet system no big deal

 

all it is is adding a fuel solenoid along with the no2 solenoid, and tap that into your fuel supply, ie split your fuel line and t-off or y-off. then its a simple y with the no2 and gas which therefore makes it wet. if you pick up a dry system, you can just pick up some y piping and the gas solenoid and braided lines for like $50-80. and make it wet