Hey guys, have a 2007 Ultra ,SERT, Stage 1 , 10,000 miles..Took it in to the dealer today,still having a slight pinging under load. Got it close, but he really recommended a DYNo tune to get it right on..I'm in western Colorado..Any ideas on a good dyno tuner out this way..I'm not that hesitant to travel a bit if he is a great tuner.. Thanks in advance, Ride Free, Steve