So here is a pic of the last Edelbrock E-Force on a 2010 SS LS3. The kit install was fairly simple except for the fact that Edelbrock miss machined the valley cover and we had a massive oil leak.
After pulling the supercharger off and re machining the cover on my mill here are the #'s we got. This is with a pulley one size smaller and a custom tune. All in all this is a great kit and actually like the fit better than some of the other positive displacement supercharger kits.
This was with about 9lbs of boost, ARH Headers & Exhaust.