Hello
On the balance tube between those 2 fuel bowls there is a O ring an a washer in both ends. The washer,is that made of metal ore is it a fiber stuff? What is the dimension of that washer.
According to Holleys recommendations the washer should be replaced when you have taken the carb apart. I bought a gasket kit,but I could not find a metal washer in it that would fit the balance tube. My carbs was missing those washer when i bought them.

Regards
Tor