Mystery Carb Part

Ok, I took the carbs off, and when I turned them upside-down fuel came out. That’s not that unusual, but where it came out of was. All of a sudden I noticed a T-Fitting betweenthe left two carbs. No hose on it however. I checked the other pair of carbs, or the space between the two middle carbs, no T-Fitting there, but when I turn the carbs upside down again fuel comes out of where a T-Fitting should be.

So, just what is this T-Fitting, and where would the hose go were I to hook one up???