On my 97 corvette. I bought a used pcm and am not sure how to do all of this. I have efi live. Do I have to just flash in my VIN and do a calibration flash or do I have to do the operating system flash? Also what is this BCM relink that I am told I have to do?

Oh Jr, this is Marc with the trans am that you tuned just if you were wondering. Anyway thanks in advance.