Clark,
It's something that has plagued high HP Drag Week competitors since this event began. You call up the convertor manufacturer of your choice, and you explain to him that you have a Procharged/Nitroused/Turbo combo that makes 1500+ ft. lbs. of torque at full song, and you need to be able to harness that on the full pass and not drive through it on the top end. That is a tall order, so they do thier best to put the stall where you need it, but not be so loose that you drive through it, to handle the huge torque load this unit is going to end up being an 11-13 inch job, not the smaller 8-9 inch most are used to in an NA combo.

Now, how efficient do you think this killer 'Vert is going to be at say, no power adder, 300ft lbs of torque, cruising through a mountainous, undulating terrain at 50 mph?? Uh, NOT! It's a slobbering, spungy, heat building PIG!!

But, logistics being what they are, we don't have room for a custom, light weight trailer, so we will just rent a huge overbuilt U-haul unit and put 1000 lbs. worth of spares, tools and fuel in it.