Use or don't use vacuum advance on distributor???????????????????

Why is it the wrong carb? You're the one saying it. What's wrong with it? Too big? It isn't too big. So what's the problem?
Thank you. I don't remember being rude or anything I asked a simple question because I am trying to learn and this guy is being a d bag. My first question was how to tune the motor to work with manifold vacuum because hooked up the car sounds like crap compared to not hooked up. I do realize I am working on the carb as well but I feel I am battling two problems.