I'm with you, John. He got the wrong charger. Boost stacking and KR are killing him.
SSE, be VERY careful driving that car. The PCM can only pull a certain amount of timing.
What John is asking is VERY important. Do the cooling ribs across the top of the supercharger disappear after they go down the sides? Or are they still prominent. Please take a pic of the old and new superchargers for us.