There are some throttle body resources out there.

I just receive the GM service manual for my 82.  What a world of difference in the information available.  One thing I did not find which does not surprise me is that it does not have anything like a complete vacuum line layout for the car. 
I would not expect this from a service manual but it would have been nice to have anyway. 
Before I dive into checking/tracing all of the vacuum lines does anyone know or have a drawing of the vacuum system that will affect engine performance? 

Check here - good info on vacuum system and they have vacuum diagrams that might help you.
http:///www.corvette-101.com/

I'm continuing my saga.

I found that part of my vacuum leak was the vacuum hoses.  Found open or torn hoses.  I have replaced most of the primary system hoses and my RPM did not drop much a of hundred or so.

Used carburetor cleaner and found a couple of small vacuum leaks on the intake manifold.  They were across from each other.  I have ordered a gasket. 

Now comes to my question.

When in college (1965) a friend of mine build a corvette to race at Bonneville Salt Flats.  They always use a copper gasket adhesive on all of the head and intake manifolds they put on. 

• Is this recommended?
• Beside following the GM manual on torqueing the manifold down?
• What else should I look at when I have the intake manifold off and when putting it back on?