Screwed

My 85 Honda obviously has a major problem. The guy I tend to trust as a mechanic has had it for 3 days to rebuild the carbuerator on it. I have seen this guy rebuild an engine in a day or less and right now he can't get my car straight. I'm supposed to work tonight at pizza, but Hell, no car, no work. If he can't finish by today....I'm screwed. I'll most likely get fired.