81 Honda Prelude stuck throttle?

I'm a student and now that I have a license I need a car, we've had an old 81 prelude sitting for about three years and i'm trying to get it running again, it will turn over and occasionally start but run like its starved for gas, I know the throttle is stuck because the acceleration peddle is screwed up and won't move right. When I get it to actually start the carbourator fills up with gas to the point of overflowing. Does this sound like its only a throttle problem to you or do you think there is more to it than that.
Also the brake booster is leaking air (it doesn't currently have brake fluid in it, not sure why, it probably leaked out) around where it joins the master cylinder, I know the problem is with the brake booster but do you think its bad or can I replace the gasket that is obviosly rotton, i'm not sure that you can get a replacement gasket without the whole brake booster though, if you can make any sense out of this horribly written question and can help it would be greatly appreciated, the car has about 200000 miles on it and has the 1.8 engine

EDITED: I got it running and the brakes just needed to be bled, should have done that in the first place instead of taking it all apart, but its running great now thanks for the help