I would stay away. I took a tour of his shop when it was in Holland. I wanted my car tuned because I was way rich (11.5/1) I told the owner I wanted it to be around 13/1. He said that was way too lean. I told him I was N/A. He said it was ok the way it is and maybe he would bump it up to 12/1. I then realized he has no clue what he is doing/talking about.
I also know of someone with a stock Honda Del Sol that dynoed 88fwhp and 222fwtq For what he charges to tune cars, I definately wouldn't want to be his guinea pig.