Hello, We have a 1973Veloce. The carburator was replaced about 11/2 years ago by a mechanic who is supposed to be expert in vintage Alfa. Suddenly, the car didn't start. I hauled the car to my mechanic and found that a part melted inside the carburator and there is serious damaged caused. It is better to change for a fuel injection system or find and replace the carburator? Thanks in advance for your suggestions. I am not certain of how to start the repairs.