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Hey yall, first post here. I have an autolite 1100 on my 200 ci 65' coupe. Does anyone know what this vent tube is for instead of having the vent tube be connected to the accelerator pump? I've had the car for 15 years and it runs fine the way it is. Just wondering why the tube instead of a normal setup.

Thanks,

Bryan B.


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I'd hazard a guess that it functions like bowl vents are supposed to work. They keep the bowl open so a vacuum isn't created when the gas is pulled into the intake. It appears as if your carb has been modified somewhat because your pump arm has the pin for the vent linkage.
 

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Mine doesn't even have the tube, just the hole in the top of the bowl. Been like that since I got the car, other than a few years I ran a Holley on it. Watch out if your float sticks, tha'ts where the gas comes out! One problem is that the gas quickly evaporates out of your open float bowl, so if you don't drive the car regularly, or if you store it a lot, heavy varnish deposits will build up in there.
 
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