Assuming it is not significantly under-carbed. and as long as the mixture is correct with the smaller carb, you will not gain a whole lot with a larger carb, for street use. In the dyno info I've seen where carb cfm was the only change, the larger carb will tend to show improvements below the peak of the smaller carb but it's usually at such a high rpm that it is useless for most street driving. For instance, if the smaller carb peaked at 5000rpm, the larger might start to show improvements around 4000rpm and peak higher.
Lower end, entry level carbs tend to be geared toward a particular performance level so it is possible for a smaller carb to provide a less than ideal fuel mixture because it is just not set up for a higher performance engine. They can usually be modified to work but the modification is beyond the ability of the average person. This can result in poor overall performance with the smaller carb. This is one of several areas where the Summit carbs shine because they have adjustable air bleeds, which are not usually found on a carburetor at that price point and those allow you to tailor it to a wider range of performance.
Lawrenceville, GA