Bagged torsion bar set up?

The Demon in Popular Hot Rodding awhile back used an AlterK and StreetLynx with shockwave bags.



Article is here
http://www.popularhotrodding.com/features/0903phr_1971_dodge_demon/

As far as air bags with torsion bars, there really isn't a good way to do it. Just not how torsion bar suspensions work.