I borrowed one from a friend and member here a few years ago. It was set up for an engine very similar to mine.
It ran pretty good, real close, but not as fast as my Dominator...which was also done by Pro Systems.

I've heard way more bad things about them than good. The general consensus seems to be that while they may work ok after a lot of tuning, the standard 4 barrel arrangement is still the way to go.