I do not have those solenoids. I think you are talking about syncing the carbs. They are too out of whack. I can't get the unisyn air float even close to matching up no matter what I do to the throttle screws. With the carb linkage disconnected no amount of throttling will make the unisyn floater readings on the carbs get close to each other.

I put my hand over both carbs. The one that is sucking so hard kept
running when my hand was completely sealing it. The one that I has
less suction closer to the firewall shut the car down when I put my
hand over the carb throat. I am taking that to mean that that one is
okay. I am focusing on the front carb. I hope that logic is correct.

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1965 220SEb Manual