Mustang Boss 429

Hello dear community, have just looked at een Fast ́n Loud and there it is about a mustang boss 429, he was allegedly built only 83 times and was the direct competitor to the Hemi ́s. On Wikipedia is of course nod, but I would like more info ́s about the horny ingenious thing. I just love car ́s that are rare or special. MfG Martin