I have used Carb Connection
High Performance Auto Services | Hemi - BMW - Corvette/Camaro - Car/Truck - Carburetor/Smog Repairin Kirkland, they have a Dynojet dyno (which I prefer). I have EFI so I had to do my own tune, but since you have a carb they can do the tune. So I have no immediate experience with their tuning talent. I can attest to the fact that they perform the dyno runs with the proper cautions.