What happened to all the Mopar Performance castings and materials ?

I remember the debacle that was "Ask Dr. Z"- and asking someone "What the heck is this trying to sell ?"

I got my first Mopar in 1997. I didn't realize how little I knew then. I had the "Engine Bible" and I eventually got to where I was finding errors and just completely frustrated.

I know a guy who has been racing a '64 since he knew Ronnie Sox, Jake King, and Don Carlton- he showed me his copy of the "Bible" and it was all marked up. Eventually I tossed them I think. For pure nostalgia I wish I hadn't. One copy I had there was a section on /6 performance and it was referencing the early 60's 2bbl aluminum manifold and and the late 70's one that also came on some of the Aspen/Volare.