Back to the dyno today, basically made the same power as last time.
Interesting though, is that the OEM 152 Keihin mains were actually slightly more rich (13.0 A/F from 5000 - 6800) than the aftermarket 152.5's that were in for the last run (they were 13.4 A/F over the same RPM band)...
It was still a touch rich at idle according to the dynos A/F meter, so I leaned the air screws out to 5/8 turns out. The A/F ratio at idle was basically the same on both the right & left carbs, FWIW.
I also installed side-gapped/knife-edged Autolite 4163 plugs for the latest dyno run. I don't think they made any difference whatsoever with regard to power. IMO stock NGK's are the best plug for this application; no fancy side-gapping needed or even desired.
Now it's all about minor fine-tuning for optimal drivability.
