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Ed, no wideband, no narrow band, no band of any kind.
The engine builder and Anthony had much experience with builds like mine, so their first guess at vents and jetting was pretty close. I swapped in one size larger idles, left everything else where it was, and it ran pretty well from the start. That was 30,000 miles and six years ago.
It idles, transitions, and pulls well - no dead spots. When warm, it smoothes right out. Never any popping, even when cold or when going down a long hill in gear, foot off the throttle.
Twice a year, at change of season, I'll go around the 'mixture' screws and adjust - but they never need more than half a turn. I think the best thing I did for the carbs was the Magnaspark.
I average 20-23 mpg, but that's maybe because of the 5-speed. On rural roads, I spend more time in 4th than in top gear. On the rare freeway cruise, the mileage can go up to 25-27.
Honestly, if I hooked up a wideband and it told me my numbers are wrong, I'd be reluctant to change anything.
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