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post #3 of (permalink) Old 10-04-1999, 11:26 PM
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Join Date: Sep 1999
Location: Cotopaxi, Colorado
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Re: need help- look at picture

I think that it is a vent port, possibly to the charcoal canister. I can see the bowl vent to the right, and ported vacuum signals are lower, near the throttle plates. Sometimes, there is a "venturi vacuum" port near the center of the carb, used to control an egr vacuum amplifier, but that is not what that port is, because it is above the venturi.

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