http://www.camaro5.com/forums/showthread.php?t=826
Mostly hearsay now that I'm looking at it a bit deeper. "If" they do the blower version, I bet it's a limited-run version, much like the pace-car turbo TransAm...
5th Gen
To learn about the fifth-gen Camaro we had to swear to secrecy, meaning that we would not reveal our contacts inside GM. Although the info we were given was not very specific, we are able to pass on some interesting 5th-gen information. What our sources inside GM did reveal was that the engine options for the '09 Camaro include two V6's and a few V8's. On the V8 table now is an LS3 engine with L92 cylinder heads. This engine will be installed in the Z28 and produce in the neighborhood of 400-450 horses. Additionally, there is talk about a supercharged 550hp Z28 engine with a Roots-style blower. Which ever generation Camaro you love, we can promise you that there will always be more driving fun ahead. CHP