Hey there Bordin, please remember that it is very easy to blame a carb for engine problems. Most people think that way, actually. But 9 out of 10 times the carb is suspect, it's actually something else.

You are on the right track. You have a wobbly vacuum gauge reading, which indicates a bad valve, and that is likely. The compression test will verify/deny the suspicion.

Once you have the mechanical aspect of the engine in good shape, THEN you can start blaming ignition and carb for your issues, but the engine must be sound first and foremost.

You're getting there!