hmmm. I see, I see: the 3.9L 260 +/- hp base V6....then I see: the 3.6 L 300 hp V6 high end...then, ahhhh yes a de-tuned LS3...somewhere in the 360 hp range...a regular LS3 @ oh...420 hp, and of course....it's coming to me...AH HA! the supercharged Monster itself...THE LS9!!! Coming to us in 550 +/- hp of raw power!
I really don't think GM can afford to fit multiple V8's into this car at this point. The Smart move would be to use a widely used V8...

hmm. which motor to use?
so...to recap (without the ooohs and ahhhs)
CHEVROLET CAMARO 'Probable' Engine options:
1.........................
2.......................
3.............................
4.......................
5.......................
3.9L 260 +/- hp....
3.6L 300hp V6.....
LS3 @ 360 +/- hp.....
LS3 @ 420 hp.....
LS3 S/C @ 500+ hp

I hope I really am phsycic...
EDIT: feel free to change the above list if you so choose....