I have had The Mustang Shop in Auburn Wa. work on my car. My experience with them was excellent and would highly recommend them. Brian, the owner, is a great guy and he stands behind his work. After any engine work, he will tow your car to The HP Ranch in Hobart Wa to get dyno tuned. As far as I am concerned, John at the HP Ranch is the best Ford tuner in Wa.
You will be very happy with their work.