273 running Rich

GREETINGS when I got my 1965 dart out of storage it would not start no fuel. changed started with filter and ended up with new tank. had stromberg WW carburetor rebuilt. One question is should the choke butterfly stand straight up when motor is at operating temp? Are the idle screws controlling air or fuel or a mix? As set right now the choke just beerly closes other car it slams shut on that choke there is a small number near the rod what does it mean?