I've done a little more work with the wideband controller (iDash). I slightly leaned out the idle a little more, and I'm just a bit over 12 at steady cruise now. I have to go back through lean-best tuning as I sort of rushed through it last time.
Also, light throttle load (cruising in 4th, give it ~ half throttle) I see AFR go up a bit as in graph above. Since it's only part throttle, is this an issue?
Graph below is 3rd gear, went WOT about 2500 rpm. See a quick spike which is probably accelerator pump which hasn't touched. Graph below is same run but zoomed in on the spike. Pretty short lived. I need to verify that I'm actually getting full WOT (been playing with linkage). Bad weather this weekend, so maybe I'll get more runs next weekend (need a longer road too :-) )
Todd