I was out at the drags Friday night and ran against a 2004 Extended cab with a dealer installed Whipple supercharger. It surprised me at first when he was able to keep up with me. I was impressed that a 5.3 kept up so I stopped and chatted with him about the truck and was amazed it had the whipple on it. I figured it would be faster with the charger. I think his fastest was a 9.86, 1/8 mile of course. I had to tell him about Allen and his programming talents since he obviously needs the PCM reprogrammed to make his truck not be such a dog. I can't wait to see him again so that he can blow my doors off next time.