No, he will tune a PCM for you and you swap them out, send him your original as a core.
You could buy one to send him and use that instead so you would have a back up.

 

oh so i have to swap out the whole computer where can i get a computer at ? junk yard?

 

You might be able to get a used PCM from Crites Core if you cannot find one at a local junkyard.

 

koo but would a chassie dyno be better

 

For forced induction a dyno or street tune is definately the better choice than a mail order tune. PM BlownChevy and he will set you up with someone who can tune your truck properly. He already offered to do this for you in your other thread so take him up on his offer. He knows his stuff and will know who can do a good job for you in your area. So take advantage of his kind offer to help you out.

 

I'd hit up Blownchevy for sure. mail order tunes are bandaids IMO and will almost never give you what you can get out of a custom tune from a tuner that knows what he is doing.