Be sure to check out the YouTube comments, they fixed it right away:
2 days ago
The engine was out about an hour after the dyno, and they got the whole thing rebuilt and replaced in time for the sled pulls today with the help of fellow racers, friends, and strangers. New engine, piping, fittings, and they even swapped rearends for the sled pull. Then pulled 308 feet! Great Job Tony and crew.