I usually ended up betwenn 1 1/4 and 1 3/4 turns on most of the KZ's. It depended a bit on the extent of modifications, but 1 1/2 turns would be a safe starting point. If you can run by a shop with an EGA machine, set it to 3-4% CO.
Not likely to have an effect on the "no Power" over 5500 though. You might be expecting too much? They were fine "in the day", but a 600 overpowers them now.