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On my new 533 I just rebuilt my Stewart Vacuum tank and cleaned out all of the openings. (Air Port was clogged and Vacuum from manifold was plugged)

Now when I start the car my float needle valve (which was missing) has gas pouring out of the top of the valve.

TWO QUESTIONS:
1- Beyond the issue of trying to find a cap for the needle valve,
any idea why gas is overflowing out of the valve? I am thinking the float is defective...

2- Any idea why the previous owner plugged the vacuum line?

Thanks

Ahh, found the answer in my trusty Dykes.

The H type carb that I have, has an adjustable (screw type) float. Everything is good as the vacuum tank that I rebuilt works great and the carb doesn't overflow anymore... now on to getting the radiator leaks fixed.