Timing advance at 0 period

hey guys a buddy of mine just hooked up his scanmaster 4000 to my 85 nat. The good news is that no codes were present. The bad news is that the car is not advanceing the timing at all, it reads 0 all the time runs ruff but driveable. also car has NO power im sure this would be why it has none but in a prof. opinion what do you guys suggest?



Thanks Chris-