I went in to Premier today to talk about tuning. I was sort of annoyed. Brock was not available. I tried talking to the guy up front, but I might as well been talking to wall. Cost is $550 for a dyno tune. They use HP Tuners. I asked what they "tune" or whatever. The response. "Everything". Really?! Everything?! I mean, at least say something intelligent to me. I asked them how many other W bodies they had done. Another kid had come up front. He said that they had done one GTP. Said it was near stock and they got it to around 275WHP. I honestly think that they know what they are doing, but not sure I'm going to pay $550 for tune for a company that has done 1 W-body and responds with "everything". I'll still decide what I'm going to do, but will not likely go there. If I have trouble tuning, I'll probably pay for a canned tune to modify.
Cliff, if you know Brock personally I'd love to go back over there another time where I can talk a little more. I think you are back here in UT shortly.