Has anyone seen these before.

Here is a set of truly rare " HUSTLE STUFF " Try-Y headers. I bought them from a well know trusted Mopar guy who live's in Detroit MI he bought them from a retired Chrysler engineer who was a small block fanatic . He had a room full of experimental small block part's that never came into production stuff all over the place. These were expensive when new and very few were sold. The gentleman i got them from bought 1 complete set with the Y pipes and a set without Y pipes. I bought the complete set as original. Painted Red from the factory i had them metallic ceramic coated a cast Gray because at the time Red wasen't avalible in powder coat. what do you guy' think of them ?.