I believe it...stock street tires will be much more slippery on a track prepped for slicks an dr's...also, he took off weight (tailgate an spare) from the rear which will help at the other end, but hurts at the start.. lowering the air pressure in the rear tires will help but in most cases you have to feather it off the line before getting into it...
There you go, I learned something new today. I would love to hit a 1/4 track. Get a stock run before we can tune the 12s. I'm sure there are some in SE Michigan. I would have to remove the cap though. PITA. Although the cap can't be any worse than a 6" lift with 33" tires can it? Maybe I can run a 15.4 with a cap! I would be happy with that.
Not that I don't believe it, but 15.4 is about what a stock crew cab hemi would run. And he says he has a 6" lift, 33" tires, and spun, and is 100% stock. That's fast IMO.