Six pack response...
I’ve had a sixpack on my wife’s Challenger for close to 15 years. Bought it new.
It’s a near seemless experience, no hesitation really.
If it’s stomped from a start, it just boils the tires. Starts nice in the morning, and when hot.
Runs on the middle carb when cruising.
At the drag strip it ran a dozen passes all within 2 tenths with 2 people driving.
I wouldn’t want any other induction system on this car.
I have toyed with mechanical linkage, as I have a ansen ball bearing linkage by Caltech, that’s a progressive setup. Works well, but you no longer could stomp it from an idle without a slight hesitation. Off idle no problem.
I’m jumping in it in a few minutes.