Mikuni vent tube

I need a vent tube, tube inside bowl is .140", tube outside bowl is .158", two tubes I think, pressed into bowl.
All advice appreciated.

Is it leaking?

That's not the vent tube, its the overflow drain.

Google K&S brass tubing. The diameter can be flared out using a small drill bit (the back side) forced inside.

That looks like a late '74 to 75 Z1 carb bowl. You're not putting that on your '73 resto are you?

>>> "Is it leaking? "
The tube broke of the bottom of a carb, I want to fix so I can attach drain hose.


>>> "That looks like a late '74 to 75 Z1 carb bowl. You're not putting that on your '73 resto are you? "
The 73 has original carbs and bowls.
I am building two more engines, where I started hole sawing pistons.