six pack carb help

rklein383 said

The outboard carbs have idle mixture screws in the front of each base plate. The are hidden by lead seals if they are factory.

Mine were frozen and ended up breaking them trying to free them. I bought new base plates and set the idle mixture screws about 1.25 turns out. Idles like a dream using the center carb mixture screws for the fine tuning.

Click to expand...

I was just talking to the guy that I sold my '69 six pack Super Bee to earlier today. He said the exact same thing as rklein383. Apparently those leaded mixture screws on the outboard carbs were often incorrectly set when the carbs were new. He said it made a world of difference readjusting them on a few cars he's known. The behaviors were similar to the problems the OP stated.