we use the Induction Solutions fuel gauge to set both carb and nitrous fuel pressure. we have the engine off and cycle the fuel pump on to obtain the readings. the racepak only shows 3.7 lbs and then drops slightly. we have the sensor mounted just before the nitrous fuel solenoid. on the last run the car did not want to pull after the shift. rpm stayed flat. am i setting pressure correctly and why the variance between the manual gauge and the racepak gauge? any suggestions as to why it stopped pulling?