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Triple Weber/SK OER tuning problems


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I have been having so many issues tuning my triple OER/SK dcoe 40 carbs. I recently bought these carbs secondhand. I have been running into issues with idle speed, and synchronizing. The car runs very rough and the engine shakes quite a bit. 

Problem #1

I attempted to synchronize all three of the carbs but ran into many issues. The carb (#2) in the middle seems to be drawing in a lot of air compared to the carb (#1) and carb (#3). This is with all the carbs set to the same idle speed screw distances. I suspect that carb #2 has a bent throttle shaft or butterfly, but the butterfly opens smoothly with no obstructions. I also checked for vacuum leaks and there doesn't seem to be any. 

Problem #2

When I put the synchronize tool onto any of the carbs the idle drops and the carb drools fuel everywhere, like a toddler drooling. I am not sure if that is normal or not. Every carb seems to do that when I hold the tool up to the throat. Also when I hold up the sync tool to carb#2 the engine almost dies out. Desperately, trying to find a solution I have to increase the idle speed of #1 and #3 in order to match the flow of #2. This resulted in a super high idle speed of about 2000rpm. 

Problem #3

Carb #2 seems to also be running much leaner than the others. I had to turn the idle mixture screws a few more turns than #1 and #3.

please any advice is welcome.


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