Thanks for the replies guys. I have a project I am working on (too much time on my hands)
Mike:
If you have a turbo head, I wouldn't mind taking it off your hands? (could you do that for a fellow canuck

!!!!
Porsche and Slevy:
1. Dished pistons, that would explain the drop in compression. Ok So I need to get a set of pistons. I will tear the engine down in the fall? I recently took the head off and the chambers looked great no ridges, scores, nothing............as smooth as it gets??? Would I stay with the stock turbo piston size or do you think I may need to move up a size????
2. The block for the NA and Turbo as I understand are identical....unless someone can tell me otherwise?
3. Suggestions for aftermarket knock sensors....