Just so you know: with these AFB carbs it is considered normal to see a slight- short bog/throttle hesitation
when ever transitioning from a fair decent cruise speed part throttle ande then rugging the trhrottle
like say hiway crusing 60MPH and then rug the throttle Wide open. This is the nature of these air door AFB carbs.
This slight short bog is normal. An won't matter if you have 1-2 or 10 edelbrock carbs or what size .
But you will be able to tune the throttle response so it is very sharp from a dead stop, from a very low rpm
with little or no stageing preload. You want to launch right from idle or very close to that. 900 to 1500rpm.
It just takes a bit of work to get it right.
remeber reving the engine in neutral does not tell you about thottle response when driving the car.
No load winging the throttle open does not tell you anything.
What matters is the throttle response when you are DRIVING the car.