What was stuck in the "wide open"position?
Was the choke blade wide-open? or
was the main throttle valve wide open? or
what?
With no fast idle-screw and no link-rod, the fast-idle cam, by your description, is inoperative. and nothing was actually "wide-open". It sounds more like your throttle return spring is missing, and the main butterfly simply stuck a lil open
But IDK
Maybe somebody before me guessed right,my head hurts