GM's tech II tune?
 

has anyone tryied to tune a car with the tech II? i plan on putting a cam in and i just wanted to know what i can and should change other than the idle. i do plan on a tune for the car just not yet. has anyone tryied this. i need specific #s on what i should tune myself?

You cannot really tune with the TECH2. You can use it to load a file that you have edited in a hex editor it you know how, but why go to all that trouble unless you are trying to edit something that HP, EFI, or TC does not support yet.