Capt. The Edel. Performer is a replacement intake. It is no better or worse than the factory iron. IF I didn't have an intake, and the stock intake would fit the build, I would pick up a Performer.
The current Edel. Carb Offerings are just like stock. Edel. says there slightly updated for performance. The AVS versions have boosters unlike the OE brass tubes.
The differance between the carbs is the manual carb is richer.