Few guys in town that I'd recommend.
RWR in Littleton, Rob Williams
P&P in Strausberg, Scott Patten
Stang Auto Tech on 120th/Sheridan area, Mike Malone
I met Mike at the last track event and he seemed like a very knowledgeable dude. Knows tuning, they do dyno in house, and his 86 GT is a testament to his work. RWR has a in house dyno, P&P uses Finish Line's dyno last I heard.