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"Several" is about four or five flats - give or take one after I gave two turns back to stop a lean-pop.
I was more concerned with keeping the adjustments the same on both carbs than with counting exactly how many total times I had turned the nuts. 12 down from the bridge usually, then adjusted out or in three flats until it passed the lift-pin test.
The way the engine raced when it had all that extra air coming in the balance tube was a pretty good indicator that the lift-pin test has been lying to me.
Still, it *would* stall with the pin-test if it was set much leaner...
I agree that it must have been too rich. I'd really like to get an o2 sensor and an AF gauge to give me something more concrete to go on.
I've been trying not to do more than one thing a week to the car and checking mileage. Until this week, I had not adjusted the carbs since April - trying to pin down the ignition as the potential problem...
My random stalls/ignition failures have made the last week hard to assess.
My question remains. Is there anything to this Vacuum-Sync approach?
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Vacuum check results - general engine condition [120-130]