You've got a "mixmaster" there- - - - -the throttle body and fast idle cam is from a different carburetor than the main body and top cover. Also, the fast idle cam is on upside down. When the choke cable is pulled, there should be a piece of linkage that lifts the fast idle cam to a higher step. The only thing worse than a Rochester with all the correct bits and pieces is one that's been cobbled together from several carbs from the scrap bin.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!