WANTED: Slant six Holley 1 brl carb (Preferably 1920 model)

Bad Sport said
A couple of hours? If that.

Have the kit, some cleaner, compressed air is a plus to blow out the passages.

Pull it off and rebuild it and put it right back on.

Yeah...people these days don't know what it was like to HAVE to fix a car in a couple hours. That's a very easy carb to rebuild. It doesn't even have to be soaked.