Isn't the vacuum line from the center carb to the out board carb vacuum pods, just to give a small kick to start the opening?
Digger73 (Mike)
That sends venturi vacuum to the vacuum pods. Then both end carbs have what they call a bleed hole which helps pull stronger venturi vacuum from the end carbs after they start to open to stenthen the venturi vacuum signal even more. Some people plug the bleed holes in the end carbs so the ends carbs will start to open sooner but it wont get the extra vacuum once they start to open. The bleeds in the end carbs are basically like a vacuum bleed off until the end carbs start to open and then they help to pull stronger vacuum as the signal will then be from all three carbs. Ron
