Is this a functional hood scoop or merely a drag enhancement device?

Yet another $.02 worth from a proud owner of a 1970 Mach 1 featuring a
Shaker hood scoop @ http://community.webshots.com/album/18644819fHAehGJAjt

> wrote in message
ups.com...
>I drove by a dealer this week and saw a few 2007 model GTs with nice
> hood scoops. The Ford web site shows 2007 GTs with plain hoods. Does
> anyone know if this is an option or is there some sort of new model
> that offers this? To me, the fake hood scoops makes a big difference
> (for some reason). The only pic I found on the web was California
> Special edition that had this. Is this the model I'm seeing on the
> lots?