I'm sure you feel something, just might not be Earth Shattering different. Most of those things you listed except for the Cams and the Heads, I already have on mine. I'm thinking of just getting Head work done on mine as opposed to getting New Heads. Port and Polish.
That's good to know and Hear. I too am going to get those "Hotrod" Cams on my 07GT also. Basically our Cars are the same Inside, but different Outside. Mine also is a Automatic. Besides the Sound, what else do you notice different about your Stang?