That is the worst case of tractor pulling I have seen in a long time. I have built many pullers and pulled super stock (2500HP methanol mulit turbo) tractors and that is the dumbest driving I have seen in a while. Those tractors have a cast flywheel and when pushed beyond about 3k rpm they explode! All pullers that have any upgrades are always required to have a steel flywheel.
I also really like it how he blew it up after the pull was over by pushing in the clutch before throttling back. Actuall super stock pulling is very similar to drag racing in the performance setups. We use Crowler 4 disc slipper clutches. My last tractor came from the factory with 58HP and now has an estmated 2500HP. It is amazing what alcohol and about 150lbs of boost will do for an engine.