torsion bars / drag racing

o.k. now i'll throw a wrench in this.
a few years ago a friend was racing his '68 Hemi Barracuda at the SS Hemi shoot out.
..this was with Barton,the Warfish and all the big guns.
the best pass that day was hi 8.4's,until he ripped off an 8.32...i forget the mph
now having said that he is well known and did not actually break the SS record
because his hemi is 472..
...he swears stiffer bars are better,at least in his car.