I do like the digital RPM readout. I know I can datalog it on my car, but not every other car.

Seriously, best thing you can do is as much as you can outside the shop. Get a basic afr tune at two low psi levels, then scale the cells accordingly. Then its a matter of a quick adjustment to afr's, then all timing.

You won't find that many people willing to dick with your car. They'll be the usual guys handing out the usually bad, biased advice, but there are a couple that offer good suggestions unobtrusively.

 

Pretty much.

 

Good advice. Thats how I like to do it too. Hammer out what the fuel curve looks like, and the higher boost levels will fall in line w/ minimal adjustments.