The pyrotechnics union must be very powerful in Hollywood. Everyday items burst into flame at the slightest provocation.
I didn’t catch the vintage of the car in the clip, but I don’t think anybody uses carburetors any more. Computer-controlled fuel injection is the norm.
I suspect it’s like MacGyver - they always left out important steps in a procedure that would cause damage and injuries if tried at home. They had Walter White do just enough for us to see that he’d be able to cause serious damage to the car, just not exactly in the way that it was depicted.