Quote Originally Posted by Spyder Man
cars run rich at idle, especially when they are cold it helps them warm up.. is that according to a nice highly accurate wide band.. or is that according to a light show aka air to fuel ratio gauge?

All data was taken from an LM-1. Its impossible to obtain a steady reading from a narrow b. All of my readings are taken from the sensor position where BATLGround welded a bung on. I have no main cat and I have MSDS Headers which remove the precats, so Im getting a good clean EG reading

Thanks for the replies everyone.