Ok so I'm having some flooding issues with my Rochester B carburetor on my 1954 3600 chevy truck. I've checked the float measurements and they seem correct. I have a float drop of 1-3/4" and when you flip the top of the carburetor over the other way, it's 1-9/32". But I noticed something today I haven't noticed before. There is this little pipe or nub that sticks out from the top half of the carburetor and mates with a small hole in the bottom half of the carburetor. Well half of that pipe is missing and I'm now wondering what it does and if it's my issue. I have a picture but I'm not sure how to load it on here, so maybe someone could tell me how to do that lol.