Help! I need a good mechanic!

Hey guys, been a long time since I've last been on here, and the dart has been in the garage even longer. She will start fine and idle fine, but once I start driving (after warm up) everything goes down hill. I give it gas and she starts to bog out, can't get about 20mph. Checked timing and it was ok, even moved timing both ways and it just gets worse. Oh! It's a 1966 dart 225. Single barrel carb. Nothing fancy.
Anyway, looking for a good shop in the south bay area (ca.), beach cities. Any recommendations would be great. Thanks in advance.

Mike.