Any one ever run one of these?
I have read that the narrow band is a waste of money. How would one even run a wide band 02 sensor on a carbureted truck with no computer or throttle position sensor?

I did hook up a narrow band gauge but it really only reads anything at speed or acceleration, if I let off the throttle there is no display and at idle it is a light show. I just ran it off of the stock 02 sensor.