Well, let me chime in again here, as I have a modded 2009 SRT-8 Chally 6-Speed and a 68 Notchback with a very beefy 408. The Cuda will hand the Chally it's @$$ on a dragstrip, but they are 2 different animals. On the highway, dam the Chally is awesome! I think the 6.1 is the wave of the future...