Could be, but the D/stock is already running 20-tooth sprockets (I think? Could be wrong...) on the finals. Heck, it tops out at about 47, and that's with a dinky 440 and no real other mods. The Chap should put out nearly 10 more horse than my ULII-02. That ought to be enough to push it to 48. The D/stock is really quite stock after-all. That Superchief is just a fine sounding machine. Listen carefully, and you can hear it pull from the bottom end. I don't think he's topped out when he passes the camera.
~m