The spare carbs had 42 pilots, so I picked up a set of Keyster 40's.
At 4.5 turns out on the pilot screws a fully warmed motor idles in the low to mid 12's, & highway cruise is pushing 15 in some situations, so at cruise it is a bit leaner than my target. That said, no carb farts either. Keep in mind that my bike needs to run more out on the pilot mixture screws as a consequence of the throttle plate air bleed holes.
No bad overall, however not optimal, either. That's OK, as I now know what the outer lean limit is on the pilot jets, on my motor, with the NBZT's. This isn't a bad combo for max cruise economy, however it isn't quite what I want.
The plan at this point is to custom drill/ream the 40's into 41's. That should do it.
