Jerk and stall when put into gear?

Dist vacc is hooked to the Carb. I had a hell of a time rebuilding this carb too...seems its a Holley 1904 and i kept getting rebuild kits for the 1920. Is this even the right carb for this car?

I havent really been able to mess with it lately as ive been mired in replacing brake lines that needed cut during my attempt at replacing the wheels cylinders and dual res Master.

-Jake