After planning and researching what SC I would use I went back to my roots no pun intended and selected a 5th gen M62 Eaton SC from a 2005 Cobalt SS to take care of the low end :) Its size and power potential is right on for the 2.5-2.7L. Very nice unit with the bypass valve integrated.

Well yesterday I got lucky and found one very very low mileage for very cheap with the bypass valve included.

Plan is to fabricate the SC holder on the stand by measuring everything and without disrupting anything so far it looks really good. I measured it on the stand and engine bay.
On the way is the used again very cheap M50 engine crank pulley (5 rib system). Using a 2:1 ratio the crank pulley being 4 inch 7/8 with a 2.6 inch pulley (modular system from ZZPERFORMANCE.com) will give me a good non intercooled 6-8 PSI The cooler will be on the turbo side then going into the inlet of the SC for a twincharge setup.
The car is running really well... took it up to 6K today and its making some good power and torque. Once I get my gauge holder I will start tuning with my innovate wideband.
Later.....