no wideband, just reading plugs. if the plugs stay clean and i can get the tune good enough that it drives well in all areas of throttle openings then i'm happy.
Tune the car to run well. Use the O2 meter for information, not final decision making.
Don't lean to heavly on the O2 meter for idle information with a big cam. Remember what it is reading, its not air to fuel ratio.
