[dscott]

I wouldn't even drive the car unless you can get it timed properly. How could they know where they set the timing without a pointer. All they could do is guess. Timing will cause a hesitation and slight spurts as you describe. After the timing is set then you can get into carb and such. Accelerator pump not adjusted properly will cause a slight hesitation. Without proper timing you could easily melt down the engine.
Don