I'm having a problem.
My C3 keeps stalling out. I'll be totally honest. I just bought it and I don't know anything about cars. And if I do need a carburator; which one?? It's a 350, 5.7L, 4BBL. Can anyone guide me in the right direction?  

Well, first things first, if you don't know anything about cars, take it to a trusted mechanic that does.  The worst thing you can do is start playing around with things you don't understand, as you'll tend to make them worse.  If you truly want to learn about it, pick a mechanic that will show you step-by-step of what things to do.  That being said, if you just bought the car, your first step would be to take it to a mechanic in the first place for a thorough checking, as you have no idea what problems may lie underneath it all.  If you're lucky, all you'll need is a simple tune-up.  But also keep in mind your car is approaching 30 years old, so you could potentially be looking at alot of unexpected and potentially expensive work.