[blykins]

How good are you at tuning?

A pair of carbs can really test a tuner's patience, not to mention someone who hasn't messed with them before.

If I were to recommend a dual carb setup, it would be on a fairly streetable engine, with a mild cam and a dual plane intake. Trying to tune on an engine with say a Tunnel Wedge and a wild cam with lots of reversion will make you pull your hair out.

As the others have said, a good performing single carb intake will make just as much horsepower.