There are some post on here from members who have used the ProFlo4. I think there were some minor issues around air filter placement. But my personal thought of that unit is that it was designed for visual impact more than performance - particularly when you compare it to other tunnel ram style efi intakes on the market.

As far as efi in general, port injection tops the list of the way to go but the cost reflects that. The Sniper TBI units have good offerings at lower cost. I think following the manufacturers recommendations to a T are critical for trouble-free installation and operation.