Hey folks. Just put my Cobra away for the winter and need some advice. I just upgraded my fuel system to a bap and 80# injectors and a new jlt short ram and a ba 2400. I have a stage 7 steggy with a 6 pound lower and stock upper. Peak boost is 12.6. I made 498 hp and 470 tq on the dyno. I have a bassani catted x pipe and magnaflow cat back. What I want to do is put on some mac headers and pro chamber mid pipe. I plan to put a 75 wet shot on it next year and I think the better exhaust will help on the nitrous. Ive seen some cobra's lose a pound of boost or two when going to headers and no cats. Should I put a 3.4 or a 3.1 upper on the blower to get my boost to around 13 to 14 pounds. That seems to be the sweet spot for a ported blower. I have no cooling mods now but I will next spring. Or should I just spray it at 12.6 pounds. I do not drag race this car I just do a highway roll on from time to time. Thanks SpeedD.