Ford Holley Carb on V8 - pipe over choke?
I'm taking a look at my carb (Ford 94 21-29) on the CMP. The one I've got has a pipe at the very top poking into the airway above the choke plate.
The spare 21-29 carbs that I can find on the net don't have this, and it's not shown in the illustrated parts list that I have to hand.
Does anyone else have this or is it just me? What is it for?
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