BTW, torsion bars are like 1-ended leaf springs. They have an adjustment crank because with time they tend to sag, but you can probably crank them up all the way to get a bit of lift. If you do this, it would create a positive camber (bottoms of the front wheels closer together than the tops) because of the unequal-length a-arms up front, and this is a very bad setup by all measurements, so people might simultaneously flip the ball joint to correct the suspension geometry up front when cranked.

IIRC, most VXers only "crank" the torsion bars down to create a drop.