That 4.4L SC N* Is also VERY expensive. I've seen the blower/IC assembly in cutaways, it'* complicated. The blower actually compresses air intoa manifold that goes to the IC ONTOP of the Blower. Then it goes down into the engine.
An LS2 probably costs 2/3-1/2 the price of hte 4.4L and has similar output stock.
Ghesh, that interior is still chunky. I find it amazing that pontiac'* interiors went downhill from the 90'*.