Thats too bad, when you have it apart its worth knife edging the transfer divider at the bottom, they are completely blunt, horrible for flow. If it still has the steel reeds put a set of Boysen reed petal kits it it. If it needs piston for overbore don't use Wiesco, go with a good cast piston...
To adjust the cable back off the adjusters at the carb plungers and at the choke lever there should be some free play. The free play is checked when the choke is in the off position and you lightly pull out on the piece that the lever attaches to. Do not flip the choke lever at all, leave it in...
They can hang open just a little, spray some brake clean down the choke circuit and make sure they seal. If they don't remove the choke cable and check again, maybe the cable is dragging. I am not sure if the choke plungers on that year have the rubber seat surface or the rubber o-ring in the...