he's using a car that was a worn out piece of c_ _p 5 years ago. And it seems like he's a tinkerer.. So I think he started with, Gee - I wonder if..... also there is 3 or 4 different videos that capture the progression. I think "they" were just as much surprised as anyone of us might be. I don't believe any one is going to go out and rob lawn mowers to replace the carb on their car. But it was a "can I?" do this effort.