[924CarreraGTP]

I checked timing and my Marelli advance, and replaced the cap and rotor with new parts. I readjusted the carbs to 3 turns out, synchronized the non-existent idle (air flow) between the carbs, and then used the synchrometer to turn in each idle adjustment screw until the throat popped showing the pop on the sync. Then I backed each one out 1/4 of a turn. I don't seem to be good at isolating the sound of each cylinder running at idle partly because the carbs won't idle. What do I do after this. If the throats are still popping do I continue to back out the idle adjustment screws?
I'm also not understanding the throttle stop screws. It's the same story. I can adjust them where the engine will run at 1500rpms, idle, and show about 7bar on the meter. When I try to back them off in an attempt to reach 1000rpms and 5bar on the synchrometer, the carbs automatically drop the synchrometer down to 3.5 and the car chugs down and will die if I don't hit the throttles. So when I give it throttle the engine runs up to 2000 and then has to settle back down which takes anywhere from 15 seconds to a minute. If I turn in the throttle stop screws when the car is pulling 3 bars it does nothing until suddenly it will run on 1,500 rpms. I've even tried manually holding the linkage at idle and adjusting the throttle stops to hit the plate, but it also doesn't work. It drops back to 3 bars and the car dies. I'm having trouble finding the difference between idle, and the main circuit.
Last time I somehow got the car to idle pretty well for ten minutes or so until I tried to open the air correctors to match the throats on one carb. When I initially started messing with the carbs all of the air correctors were closed completely. I'm thinking about keeping them closed and just trying to get it to idle.
It's my error that I still haven't checked the float levels, but it doesn't make sense that they would be wrong when I haven't removed the carb or anything on them since starting this.

Another stupid question. Am I supposed to be using the idle adjustment screws, or the air correctors to snyc the throats on each carb? I've read a few explanations for this and they contradict each other.