A question on nitrous fuel setups. 1 Is a 1 gal fuel cell in the front of the car big enough and how many passes can you get or should it be refilled after each pass? 2 Are any of you guys running a fuel pressure safety switch on your system?3 Do i need an extra fuel filter and a return line or if i'm running 6-7lbs of pressure do I need to run a return line? Does anyone have any pics of your nitrous systems and how they're setup? Thanks for any help!