chevy is supposed to be havin a 450 horse motor in the works for the vette program. thatd be a HELL of a race. the mustangs is heavier, but has more power and the vette weighs less with less power. thats one of them things that may come down to driver skill. Howver with a pulley and a belt the cobra would be pullin it no prob. Id still rather have the vette though, its a legend. not to mention you can always call up lingenfelter and ask for that modest boost in performance known as a twin trubo setup.
i too would give some body parts for a lightning also. duc, i think that if your funding allows it you should go for it. those are awesome trucks with awesome potential. you wont be disappointed.