I bet you'll be happy with that when its in the car.

Carb too rich, leave it that way? How rich? Did they touch the carb at all? Sounds like they just didn't want to tune your carb, and there is probably power in it still. But even without it, sounds like that engine is making good power for the parts in it.

Now I need to pin those needles, got to feel that heat
Hear my motor screamin while I'm tearin up the street