You might consider 1 big fuel system. 1 good pump with -10 line to a fuel log, and then a seperate regulator for the carb and the nitrous. You'll want to regulate the fuel for the nitrous seperately from the engine. Maybe 7.5 psi for the carb, and whatever your nitrous system needs. You'll be in the low 9's with a 150 shot, and that's enough HP to require a good fuel system, IMO.