the LS9 is rumored to have 650hp+ so yeah they plan to stay way ahead of the game.
although, I think there was a V10 mopar engine on display at the chicago show that produced 650hp with some minor tuning and parts from mopar.
found this on gminsidenews.com
"Queen says the C7 Vette will stick will a naturally aspirated V8 and RWD (not AWD). But power will climb by another significant increment, up to around 700 horsepower. 'We're working hard to get that power onto the pavement,' Queen said, mentioning that weight and weight distribution are the keys.
Modified by The General at 9:53 PM 2/22/2007