Torsion bars

Looking to replace my torsion bars on my 71 dart with a 360. What brand do you guys have good experiences with? Was looking into the PST bars…any one have the some good bad or ugly comments about them?
Look into PAC.
Years ago a friend got a Tornado 455. They cut the frame just rearward of the torsion bar cross member. Once they got it stuffed under a Corvair, the crossmember stuck out past the bumper. I steered them to Valiant or Demon torsion bars. He found a manufacturer that recommended road race bars. The hex ends were smaller than the Toronado, so they shimmed them. I have no idea who that manufacturer was. That was over 45 years ago. That Corvair went like stink in a hurricane though.