Complete of noobie questions...

[Hayes]

okay, I searched for this information but could not find it. I think it would just be easier to ask anyway.

I just bought a 1983 Saab 900 Turbo with 87000 origional miles. I am the type of person who immediately begins planning modifications when I take delivery of a vehicle, but I realized that I know absolutely nothing about Saabs. Here is the question(s):
What is my chassis code?(4 door)
What is the code for the turbo?
What is the stock boost level?

Any other information you think would be good for me to have is much appreciated.

Thanks in advance,
Brandon

P.S. If you know of any good performance sites please let me know what they are.