John:
Okay, here's an easy one:
Did you try taking the belt off of the supercharger?
(Does it still set the codes?)
Also, for the intake gaskets, I recommend a dressing (top and bottom) before you install them; I used this one:
http://www.permatex.com/products/pro...&item_no=80696
Especially since these gaskets are known to fail AND you are now putting boost pressure on the gaskets in addition to vacuum. Also, if you've ever wanted to replace the thermostat, now is the time. The intake has to come off to change it.
Good Luck! Keep us posted.
Nate