Cool info. Thanks!
I tried out a couple of the calculators, and I get 194 mph in 5th gear at 6400 rpm. Of course, that doesn't take into effect horsepower and drag. I didn't find any calculators that take that into effect. I'm not afraid of higher math though. Do you happen to know the equations?
As a side note, I did find out the terminal velocity of an SRT-6 Coupe.

Assuming you could keep its nose pointed at the ground as it fell, and that you dropped it from a sufficient height, the SRT-6 Coupe would reach 408 mph before it hit. Now THAT is a fast SRT. And it's stock too!