A lot of great advice in this thread. Al's is really well written.
I agree with Cab's, and pretty much all the others too.
The question I have for Dusterkid is: How interested are you in tuning? Do you just want to do jets and have fun racing; or is getting into the tuning a little bit more, or a lot more part of your agenda and enjoyment?
Since you are already taking passes at the track, IMO the immediate use of the AFR gage is whether main jet changes cause the expected change in AFR, and whether the AFR stays steady from shift into top gear to end of the track. Under WOT it should flatline. Under other conditions, it can and should be different AFRs.
Wideband & AFR Focus on one aspect and change just one thing at a time.
