Wideband

I don't think the wide bandwould come with instructions other than just the obvious 14.7 to 1 being best burn. I try to keep mine idling close to that 14.7 as I can and from every thing I've researched about 12.5 to 12.6 at Full Throttle and that's just about where I have mine. At least this could give you something to start with and work from.