Found some debris in the fuel line going from the master carb to the slave carb. I'm guessing that junk clogged up the jets or something. I've got a filter a foot from the carbs so not sure where all the debris came from. I didn't really see anything in the jets but that's gotta be the problem. If it's clogged in the internal circuits, not sure how I'm going to clean that out but I'll give this a shot later today and hope for the best.