IMHO, those numbers seem about right; even along the lines of the tune, pulley, and exhaust changes. We don't even know what the CTS-V is rated at,
yet, so I'm sure we could expect numbers close to what Cadillac is speculating right now.
I am a little concerned that the weight is so high however. I think adding the blower could easily add another 100 to 150 pounds or so (blower/intercooler assembly, coolant pump, coolant radiator, coolant reservoir, etc.) not to even mention additional chassis stiffening and drivetrain strengthening (I remember the CTS was mostly built strong so as not to require much in the way of additional strength when the CTS-V came out and I'm sure Camaro will be the same) but I was hoping for a car closer to like 3700 to 3800 pounds. I guess in the grand scheme of things, it could be a lot worse, so I'm not going to complain, that's for sure.
For me, as long as the car comes with the power, handling, style, and reliability we all think and hope it will, I'll be happy. She's going to be a weekend toy/track car anyways, so I'll spend more time looking and drooling on it than driving it