i made my first couple passes to day under spray, and with the narrowband A/f ratio gauge i have, i noticed under WOT while spraying, it held between the first 2 greens and last yellow. i know its a narrowband, but still, can any a/f prediction be made from this?? am i @ an ok ratio??

 

Yes, narrow band will give you a general idea of where the car is at. However, I would suggest getting rid of the light up style and getting something that gives you an actual mv number like the Dynotune gauges.