Having said all of the above, if you ARE looking for a slight increase in performance, and don't like the looks of a single one-barrel:
Multiple carb setups (WITH PROPERLY SELECTED AND TUNED CARBS) will give a modest increase in engine efficiency (power and fuel economy), even over a properly sized single carb. The multiple setup decreases the distance and the variance in distance from the A/F source (carburetor) to the cylinder. This promotes better cylinder fill ratios, and more constant A/F ratios among cylinders.
And, as I stated in the previous post, do the math. Mathematics really is your friend.
Jon.
