Cam...ing?
 

What is all involved if i want to put a cam in my 03 ZR2?

Other than the obvious work required in dismantling the engine, you will also likely need to have the PCM tuned so it doesn't freak out.

Do you really get that much more power out of it?

You won't see huge gains, but you can definitely change the character of an engine with a cam swap. Depending on how much of a change is made in the cam profile, the PCM may not be able to adjust which is why I mentioned getting a tune. A tune will maximize your gains provided the tuning shop knows what they are doing and understands the modifications you have made.

Hmmmm...Its starting to just make more sense to do a 350 swap