When you say 'idle bleeds' do you mean the idle mixture screws by any chance ? Is the large one you mention knurled so you can turn with your fingers ? If so, this is probably a BG one.
If you have no primary or secondary PV then jetting usually ends up square.
Was this the same carb you had before engine rebuilt ? Is it box stock or did someone modify it for you ? If modified - by whom ? If a good place then have them set this up for you.
Also, depending on compression, cam, etc,etc will depend on how much initial advance you need. Initial advance plays a huge role in not only how the engine idles but also how well the carb can do it's thing.