I don't think you are going to find anyone local. I just got my Power FC and will have to learn how to use it. If you don't have one already I highly recommend you get the datalogit software and a wide band 02. With those two items and a willingness to learn you should be able to get on your way to a state of tune.
P.S. You made 322 WHP with the stock twins? That seems pretty impressive to me. Was that on a Mustang or Dynojet dyno? Was that with the Power FC?