I installed an Autometer Cobalt Wideband A/F gauge in my 07 GT 5spd. The car has the mods listed in my signature, NA. I'm getting readings of around 14.5-15.0 when driving the car. I had the car dyno'd on a dynojet and the A/F was around 13.0 the entire rpm band. I'm confused as to why these numbers are differing so much. Do I have to calibrate the Autometer gauge to 13.0 and work from there? The set point for the gauge out of the box is 14.5. How can I get an accurate reading? Thanks