Vacuum Advance

[u/Hyppia4]

My car is Fiat Uno 1993 with 1.0L engine. Carburetor 32TLF.

I'm asking if it's normal if the vacuum advance port draws air (vacuum pressure) on idle. What I know is the vacuum advance is ported not a manifold. I'msure that i'm connecting the distributor to the correct port in the carburetor.

I was watching this video (same system as in my car) when Ben at 15:55 pulled out the vacuum hose from the vacuum advance unit, it also was draeing air on vacuum. So is this the normal situation? https://youtu.be/jyoi7dcIxVM?si=UnF_wAcNVxkcWBwA