vacuum solenoid?

I rebuilt the carburetor on my Mazda b2200 93 and now I have a vacuum leak that I can't find. I think it's one of the solenoids. But how can I be sure of is. All help is appreciated:)

Automatic or manual?
Stock or Weber?

If automatic there is a vacuum line to the transmission that is usually left off...

Manual and stock

Are you sure it's not a leak at the base of the carb? While the truck is running spray carb cleaner on all the mounting areas. If the engine changes idle that is where your leak is.

You also didn't mention what it is doing, or not doing.

The engine is idling really rough I already tried to spray carb cleaner around the base and the tubes. The engine also seems to be miss firing..?