Because I'm not the one who made declarations about how well or poorly it would work, I'm just the one who posted the pics, identified it as having been produced by Chrysler South Africa, and wondered how Fanie Gerber is doing in his long-term project to reproduce it. Whoever wants to know more detail would do well to ask him.
(Chrysler South Africa did manage to consistently wring really good performance out of various configurations of the Slant-6 in their production cars down there. They might've known a thing or two about what they were doing, and they might've had the kind of R&D resources that go along with being a car company.)