For # 1 I used to tell them it isn't an original Cobra but it is a real car . I think 90% of the people asking Is it real mean is it an original.
For # 2 I only had one carb so I never got asked that question. I did have a 427 tunnel port in a car in the 60s that had 2 huge Hollys on it and a woman asked me why I had two on it and I jokingly toldher it doubled the gas mileage.A few minutes later her husband was over at my car asking me why I told his wife that as she was now demanding that he have two put on their car. I explained to him that I was just joking and never thought she would believe that and everything was ok.
For # 3 I always used whatever badges were the same as the engine I had in the car. Not correct I know but nothing about my car was correct to the originals.
Foe # 4 After answering the first 3 I don't remember ever being asked that but once and a woman once asked me if that was the same kind of car that James Dean was killed in.
Ron