Detroitmuscle07

Is there anything I can do with the Vinci programmer to help bring down my positive long term fuel trims? I've checked for intake and exhaust leaks thoroughly and cannot find any. The car runs great with long tubes, blackwing, honeycomb maf screen, ported throttle body and 1.8 crane rockers on the cam #1 setting. The problem is that I'm averaging around +12 long term fuel trims. O2 sensors are functioning normally and I never throw any lean codes. Have I outgrown the use of the tuner with these mods and now need a dyno tune to correct this issue? I should mention that the high performance/stock cam setting also averaged positive fuel trims in the low teens as well. Thanks!

Detroitmuscle07

Spoke with Roger at Vinci. Time for HP tuners or a dyno tune. Mods please close the thread.