174/177 supercharged small block, where to start?

If Pro Comp is any relation to Pro Comp in Australia I wouldn't use anything with their name on it.

Here's the 6/71 set-up that Bill also did for me. It was in a 1965 AP6 Ute but the because it was an early A-body everything was a tight fit and the big blower made the car the center of attention everywhere it went. Which is cool at shows but painful on the street. I tired of it quickly and didn't even bother racing it before I pulled it apart and sold it.