Yes there is. The DOHC are all top end. You don't even really feel the power until about 3200 rpms and then they'll pull hard right to the redline (6,800). And dont forget a set of 4.10's (which are awaiting an install by me lol). 5.0's are all torque which is why you feel them down low. Now don't get me wrong I'm not knocking 5.0's at all! I still wish I had mine so I could have the best of both worlds, but I had to pick one engine basically, and I went with the cobra. But since you are keeping your fox, IMO without even hesitation, get a DOHC Cobra!!