https://www.youtube.com/watch?v=-vk7jUmoC2o
Damn. Definitely minus points to the carb conversion. The funny thing is, that is a period correct thing but for a car in this condition I don't see why someone wouldn't make it correct since the system has been well understood for decades now. And the availability of that analog multiport EFI system is one of the distinguishing features about late 70s Cadillacs (and don't forget about the rare dual airbags). Especially considering that it apparently also has Trackmaster brakes, which is rear ABS (started in 1970 actually).
Oh, a short road test: https://www.youtube.com/watch?v=9M4qsdh68W8