I am not so sure about your fuel pump. My stock fuel pump supported all my mods and 150 HP of nitrous. That was it and on the line. One HP more of nitrous would raise all sorts of hell. I ordered an external hog of a pump and installed it. Then poured the nitrous to it. I recommend buying and tuner and taking the class. The information and dynamics that go on is staggering and extremely interesting. I bought the diagnostic suite as well. I can diagnose and repair anything on a LS engine with both those programs. Problems shops can't. Some problems only show up under load. You can select a meter or graph for what ever you want to monitor. You watch the graph when you put the car under a load and it will stick out like a sore thumb when the problem starts.