383 Build up questions...

There was a buildup of a 383 in an old Mopar Muscle magazine where they got 450 horses out of their's. I believe they had 9.5:1, a .545 inch cam, 906 heads with the bowls hogged out, M1 intake and I think a 750 Holley.

Also, I am interested about building your own DC K-member, Mr. Lusk. I'm thinking about the big block swap and don't really care to spend the $200 like you said. Details?