Alright so last Thursday I needed to have a new alternator belt put on my car and the only changed so I took it to a local shop in my town. They changed the belt and the oil within 2 hours and called me with a price of $66.90 which I paid in full. They tell me when I am up there I need a new waterpump, belts, 2 new valves. The waterpump issue wasn't surprising since I knew for a fact that it had been leaking for the past 2 months and since 1 of the belts went the other 2 where going to go but I had no clue about the valves. Anyways 4 hours later I get 25-30 minutes away from my house and my car completely shuts down and starts to smoke like crazy from the hood. Looks like I have a bonfire in my hood. I call them and I am like what the hell happened I gave you my car which WAS running perfectly other than my alternator belt and you give me back the car which seemed to be smoking a little more when I hit the gas, etc and now the whole car shut down and I am stranded and need a tow job. They come down to get my car and before they load it up on the roll back I ask how much the tow job will cost well their answer is I don't know just let us look at it tomorrow so I was like fine. There conclusion was that its needs a new water pump. I was like alright so I went and ordered a water pump which was $60 and they said labor would be $150 which was fine too. Well Tuesday they finally got to work on the vehicle and said it would be only a 3-4 hour job well 6PM they call when they have been working on my vehicle since 10AM and said its still over heated "a little" and I need a thermostat so I told them to get it. Now today they call me and tell me I have warped heads or blew the head gasket and said that they don't do this type of work and gave me a bill for the labor plus a tow job that they never gave me a price on that was $313 + tax. So now I am just thinking to leave it up there and not pay them because its not fixed, might blow up pulling out, and seems like they have messed with shit since it was running great Thursday morning. I believe they messed with other shit such as the water pump due to the fact them telling me its going bad when I told them to fix my alternator belt and change oil, nothing about the water pump. So now what do you guys think I should do? Leave the 1981 Oldsmobile with them, bring them the title, and save my $313 if they like it or not or pay the $313 for a car that still isn't fixed and it will cost another $500-600 to fix the problem IF i can find a used set of heads.