Vacuum Hoses from Dizzy

[Pfennig]

The vacuum unit on my dizzy has 2 connections, the lower one is connected to the left carb but the upper one is open to atmosphere, is this right?
This is on type 4 engine in a crossover.
Thanks for any help. :?

 

[tonicman]

pics would prob help this post dude maybe of carbs aswell as dizzy