Goto dez racing. The owners name is Mike. Hes a real good guy, very honest. They are in seekonk mas. 1-508-336-6588, ask for mike.
Hes a great tuner, he spent hours on my 418 getting it to idle without dieing.. Finnaly got it right. He charges 500-550 for a full dyno tune with the chiop included. I had a tweecer before.. And i must say - just get the chip, its much easier and u dont need to mess with it. Once you goto dez and get a tune, he will take care of ya in the future..