I have a 75 secondary idle, one of the biggest available. I think they only go to 90 or something. I went up to an 85 and got a rich bog. I think it helps to feed the CVCC part of the manifold because it is extra valve area with the CVCC valves, but you should be able to run with it completely blocked. I don't know how this affects the breathablility of the head with the squish and quench zones and all that stuff.
Now that I think about your problem a little more though, it may be that your secondary idle is too big. I had to go up and up and up on the secondary idle that makes me think you're too lean though. Your bog may also be due to the secondary emulsion tube. I got best results with a secondary e-tube with very few holes on the bottom and a lot of holes on the top. To complicate the issue, I get monster top end with no holes on the bottom part (F59) of the primary e-tube, but the progression is not smooth, so I use the F59 tube for racing and switch to one with two small holes on the lower part for daily driving. Tuning a progessive carb is complicated having four circuits operating in sequence. Have patience.
As for the distributor, I haven't a clue abotu the weights, but I run the yellow banded hose from the distributer to the vacuum port on the carb and have the other hose plugged. It works fine as far as I know.
Thanks for the jetting info... sounds like tuning those 4 circuits will take a lot of trial and error and a little insight until it's just right. The primary barrel has gotten fairly dirty from a few 55 mph backfires I've noticed too in the 50 miles or so that I've driven it since I did the carb swap... I think I'm going to play around with the timing a little more yet as well. Anyone got some extra secondary idle screws for a 32/36 they want to part with? Didn't see any on ebay and I don't think anyone stocks them locally.