idle too high, makes undriveable

Now don't take this wrong, but how much do you know about carbs, carb linkage and choke operation? If you don't know anything about how the choke and the fast idle linkage works, you will need some help. If you do understand it, you should be able to fix the problem pretty easily. I can almost guarantee that it is one of the 4 things above.
Nothing really. Just what I can read from a book or find online.

I'll check for vacuum leaks, but I don't think that's it. All the barbs came capped when I bought it, so the only ones missing are what I removed to connect hoses.