Just bought this car off this guy supposed his first ecu was stolen and had to replace it so has just a basic tune in it. The car has a GT35R stage 3 bc cams stock valve size ported head ported intake ported throttle body agp race ic. No intake straight filter on turbo. Big kicker 650 rc injectors (for now). Any ideas on a good map. only running of waste gate spring right now vacuum line not hooked up (15lbs). Also he said to not hook up the first O2 sensor is this correct? Also have 5bar map sensor.