Hondata

Manifold cylinder filling compensation through valve adjustment.
Has anyone tried compensating for the greater filling of cylinder 2 and 3 by adjusting the valve clearance on the intake side to help average the air that all cylinders see?

An example would be
Cylinder 1 and 4 would be .25mm,
Cylinder 2 would be .21mm
Cylinder 3 would be .23mm

Would this help all cylinders get consistent filling?

No, don't set the valve lash to anything other than factory specifications. The changes you have will not make much difference to cylinder filling.

I would reduce the ignition timing slightly on those cylinders. What knock counts do you get over what time period, and what is the knock control?

I am not getting any knock counts. That was an excerpt from your help file. My suggested valve clearances were still within the suggested range from Honda. I did however have my logic reversed for the cylinders, flip what I said for Cylinder 1/4 and 2/3. My objective was to get as consistent afr between all cylinders as possible. It was just an idea to achieve a little greater accuracy.