Choice of carb?

My brother has a 69 `cuda , with a mildly built 340/4-speed in it. He's not a racer by any stretch, and it needs a new carb. Switching from a corroded Holley, to a Edelbrock. He doesn't want a "stinky" car. I'm wondering if he should get a 650 AVS-2, or a 750 Performer. I know what I'd do...but he's nothing like me. He'll just mildly cruise it around. Any experience or rational suggestions? It'll be a manual choke setup.