73’ 318 dies under accel with new intake & carb

Professor Fate said
The picture I posted is a generic Eddy carb (since you didn't mention WHICH Edelbrock carb and manifold you have) and the vacuum port locations could vary slightly. Look up your model carb (stamped on the left lower corner by the mounting stud) and look it up to confirm your port locations.
Then try the ported vacuum for your dist. advance. Barring any vacuum leaks on the intake (as others have mentioned), I'll bet your bog disappears.
By the way, when you set your timing, you did it with the vacuum advance disconnected and the port plugged, right?

Thank you guys for all the advice! I just went out and looked and the vacuum advance is plugged into the manifold vacuum! I will try swapping those and see what happens. By the way for everyone asking the intake is a 2176 Edelbrock performer and carb is a 1400 600cfm Edelbrock performer.