Six pack response...

As usual, I've come to the experts, always someone being able to help me with my stupid questions or needs.
Can someone tell me what is the "norm" of a response to a six pack smashed to the floor at around 2-2500 rpms ?
Is there a hesitation before the vacuum kicks in the end carbs or is it supposed to feel like the Dead Sea opened up and swallowed you....
Thanks in advance to any and all replies.

Never owned one, but borrowed one from a friend when my new ford pick up laid down on me under warranty . 1969 charger , ran great and had great response / best I can remember , I waxed a new trans am fire turd taking her home with it !
Made him look stupid !