Jim, you can do this job yourself. First, read this to learn about the different type of timings:
http://www.gofastforless.com/ignition/advance.htm and then watch this video:
http://www.videojug.com/webvideo/how...iming-on-a-car and then set your total amount of timing at, say, 3500RPM. One point that I'll add is don't turn the distributor when you have the RPMs up at 3500. Instead, watch the timing under your light at 3500RPM and then let the engine slow back down to idle, turn the distributor a little bit, and then rev it back up to 3500RPM to see if you have it set correctly.