yep that should be about right, the LT1 has a good bottom end but makes it's PEAK torque @ 2500rpm or something similar. I think the Vettes are rated at 300bhp though (275bhp Fbody), so they arn't what you'd call a slouch.
The 3v setup on the GT and the OHC design means it's going to like the higher rpms more.
In performance terms, it should be pretty close, but I'd give the nod to the GT with a good driver.