A blower, as mentioned earlier, would be a better route to go. Gearing would be a close second. These V6 engines just don't have much to be wrung out of them in a practical manner. I think I've read rumor of aftermarket camshafts on the Charger/Challenger forums for a while now, but nothing ever comes of it. We there money to be made on it, it would have been done by now. There isn't the gearing, on most Jeeps anyhow, to do much with the power it already has if you are looking for speed-type performance. Gearing is a no brainer if you can't throw the time, money, care and feeding into a blower.