I would match the intake with what kind of carb that you are going to run.
You loose flow energy when you use adapters.
The Action Plus is made for a spreadbore carb, and has a power band from idle - 6000 RPM.
The Stealth is made for a square bore carb and has a power band from idle - 6800 RPM.
I like wiand dual planes over the performer. They have a wider RPM range and wiand makes a good casting. I've seen less core shift on wiand and offy intakes than I've seen on Edelbrock.
Also when you use a dual plane intake, use a split gasket to keep the stronger pulse all the way to the carburetor for stronger off line performance.