Questions - PLZ HELP

[Beavis]

I need to find out what kind of intake manifold i should put into my car... I've been looking at elderbrock, and other's.. but which one gives best performance ? OR, should i buy something else before the intake?

Also, what kind of air intake should i put... i heard BBK has K&N Air filter, and a chrome pipe.. but rather then for show, which one gives best performance?

Was also thinking of buying a supercharger, like vortech... Should i wait untill later on, or get that now? (Between supercharge and turbo [twinturbo or single] which is best?)