What Is Missing Here On My 1BBL Holley

RustyRatRod said
The throttle shafts in the two pictures are in different positions. Yours appear wide open. The picture hoppy posted is not.

Yup. Close your throttle shaft and come in from the other side with the rubber bushing. Halifaxhop's carb is modified, so not exactly like yours. His is much later and has had an early throttle bracket mated to the later carb.