Nice Fairlane and it works well.
Welcome and good to see you posting as a newbie. Great place and thanks for getting to this question.all the levers are the shifting mechanism for lenco or Bruno type trans. let off the clutch leaving the line and every time you pull a lever you a **** gear with out pressing the clutch. They are a stackable type trans were you can 2-6 gears by adding anther set of planetaries behind the first set. We run just the reverser attached to the clutch can in the top fuel car.
http://www.lencoracing.com/CS1MasterPage.html check this out for more info.