Real Formula S. I've got the original sales invoice, window sticker and title with it from 1965. The original tach was removed and a Sun tach in its place. The original 904 was rebuilt during the summer, but the engine, rear, front suspension need work. That's not even getting to the body.
The 273 is not original to the car, but the carb is the orig. 4 brl. (so I'm told).