[DanEC]

I looked things over a little more and as near as I can judge with an angle indicator, my second carb is starting to open with about 15 deg opening of the front carb - so that looks pretty good.

And, my primary throttle blades are nearly closed in the idle setting. A whole lot of the idle transfer slot is left above the throttle blade on both carbs - nearly all of it - but I haven't actually pulled a carb to look at it from the underside. It appears that the rear carb is actually cracked open a little more than the front one. I wouldn't think they would mess with those after taking the motor off the dyno so I guess that is how it was broke in and run. I may have some fiddling to do with that.