BEST Mods for a C5
And all you mention are good mods, and all will be good, considering that usually w/ a beefier cam it takes some computer mods to make it run correctly. I say do the cam, then maybe tweek w/ the computer a little w/ LS1edit or something similar, then maybe heads and headers. Try all the free mods you can to see what that'll net you. Besides, they're free so why not? lol.
But overall, the mods you list are good, and will be costly, but take your time, do each one right,and you'll be pushing some impressive #s.
I would tell you that buying edit is expensive and you really need to study up on the different parameters you can change. My advice would be to just let Cartek dyno tune your car if they end up doing the wrenching.
Good luck!


