[moneymanager]

Yup, totally separate. The circuit simply supplies gas needed by the motor as you move off the idle circuits and get on the main circuit. You can so far as I know change this endlessly without affecting anything else.
Re the 13 turns, I doubt that this takes you to zero, or that 6/7 turns will take you to 3 cc. I think its more likely that fully tight takes you to 1-2 cc, some minimal amount. However I've never looked. But more important, you don't care. What you want is a motor that doesn't bog. If you start with both carbs dumping the same amount of extra gas, and you tighten each side ten turns and get good results, congratulate yourself. At that point you really don't care what the amount is.