Here is another video. Better, you can see more. This is a 900lbs. 26 tooth gear. I won this class.
Here is my cousin on his cub with a vangaurd. It is a 30cid 14hp vanny. I know he has some arc rods, midwest steel flywheel, and a precision cam with ec valvetrain. I dont know anything else about it. It runs real strong for 30cid. I did pull in his class at 900lbs before getting bumped up to the next class.