What's the prognosis? DR.
 

I put a superchager on a 99 SS camero.
After three runs of tuning it started blowing white / blue smoke.
Vac went from 20 to 15, idle is rough.
So what do you think it is?

rings?

... or a head gasket. What colour is the oil? Chocolate milkshake maybe? Hopefully it's something simple - like you blew a vacuum line off because you forgot to zip-tie it.