Just out of curiousity, what are you looking to get? Pictures of the setup or a contact for technical info? Adding a turbo will require a pile of customization and little that you do is likely to match someone else's work (nor should it imo).
A google image search brought up some neat stuff.
http://67-72chevytrucks.com/vboard/s...d.php?t=523580
https://www.youtube.com/watch?v=WSzuJUUuTTA
