My one SP2P experience......

396 BBC in a 68 Camaro........ it was horrible.

I’ve never experienced anything quite like it.

I tried multiple carbs on it, and they all had the same trait.....or rather, the trait was consistent with a few different carbs.
First off...... the motor was absolutely “done” at 4500.

If you were cruising along pretty good at say 3500-4000..... and then stepped on it, the farther you pushed the pedal down the weaker it felt.
It didn’t feel strong at any point when driving the car.
It’s not like it started out great then nosed over...... it was just weak everywhere.

We pulled it out and dynoed it........283hp.

For a low end grunt 440, I’d use the std Performer.
I had one on a re-ringed 440 in my car for a few years...... that thing had fantastic bottom end snap.