Preformance Suggestions And Advice Needed

I have a stock 4.6L 2002 Mustang GT Manual 5speed, I want to install a bigger aftermarket throttle body, any suggestions on which kind and which size to get??? And in doing so would the stock intake manifold be alright? or would i have to upgrade to a different one?? i could really use some advice on this can somebody help??
 
Post up those queationsover in that model specific setion and you'll get some help from the guys experienced with that platform. My experience says a throttle body change will gain you nothing without other mods, typically heads, cam, and intake before throttle body