Well went to take the carbs off and found that the petcock has become faulty since I put the bike back together -- after removing the vacuum line and the fuel line from the petcock, fuel would continuously drain out, no matter the position of the valve.
I've got a rebuilt kit in the mail, thinking at the very least this won't be helping things, but I wonder if this could explain the problem by itself?
I'll get the carbs apart again and document things to get your take on the PO's setup / condition.
Thanks!
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