In answer to question regarding my boost, when I step on the gas hard, the boost gauge goes up to last slash mark before the red zone. Then the guage goes back down when I stop accelerating. It is still making rattling noise, which dealer says is coming from supercharger. Tonight my check engine light came on and it smells like rotten cheese (forgive my description) under the hood. All gauges are fine. Does anyone know where I can get a manual with the diagram of the supercharger in it?
Please help!

If you have a check engine light, a diagnostic code has been stored. Since your car is a 96, you can't retrieve the code without a device. Autozone can retrieve the code for free. The codes give you (and us) some insight as to the problem.

I'm not sure about the smell, possibly someone else knows. I would get the code retrieved and get back to us.

The rattling is probably a bad coupler in the supercharger head unit, but the boost appears to be fine, I don't think the supercharger is tied to the engine problem, unless it is starting to cease up.

The rattle and bad smell could be from the cat con...

That smell is a Cat smell. 5.0 is right on. We've talked about your supercharger before......if a SC is making full boost, but you have a rattle that has been confirmed to NOT be the Alternator or belt tensioner, you problably need a new 37 dollar coupler in the nosedrive. You have a couple different problems.

The check engine light coupled with the smell tempts me to make a call on your O2 sensor. It may have had enough. No way to know until you pull that code.