Better Performance Output

Holley 750 Double Pumper if you want performance
And so long as the rest of the drivetrain can handle a sudden wide open throttle hammering.

Install a vacuum gauge.
And see what your pulling at a full throttle run. Then go from there. If its higher than 1.5 you definitely want a bigger carb. Just make sure it aint the breather holding it back. If your more like 1 its debatable.
On mild 360’s, your looking at approximately a 10hp gain. This is a very variable number. It could very well be greater.

Deep-6 the open airfilter and go with cold air intake tubing.
I don’t understand how this applies.
The open filter element pretty much cancels out the benefits of the Air Gap manifold.
Totallly disagree th this!!!!
The better the air filter is, the better the intake can shine. To cancel any benefit the intake has, install a crappy air filter.

If I went with a 750, what brand carburetor is better with throttle response? Holly, Edelbrock, or are they pretty equivalent?
Throttle response is directly related to the size and state of tune of what ever carb you run. PERIOD!
State of engine tune is also included with this. But for the moment, let’s assume everything about it is in mint tip top shape. And the only variable is the carb.