On a N/A... waste of money... especially if you're doing it for the sound. These aren't mustangs.
But, here you go:
http://www.horsepowerfreaks.com/perf...K3/Engine/Cams
I wouldn't get anything over 264.
The couple people I know who are running upgraded cams on N/A's felt they needed to add adjustable cam gears as well in order to get the car to idle well and get as much power as possible from them. Keep in mind that most of the 7M upgrade components out there are designed for a forced induction engine, whether they state it's for both or not. Just keep in mind that the possibility exists that you may need to follow the same route.