Exhaust system for a 1965 Dodge Dart GT

I have complete TTI system in my 65 dart - headers and 2.5 dual exhaust with crossover and dynomax Super Turbo mufflers. Nice system, but not without issues. I think it is quite loud even at idle and cruising. Some people would probably like it, but it gives me a headache after a few minutes. I'm hoping to add resonators soon. I also have little to no clearance between the headers and the torsion bar on the passenger side. I actually get some noise, clanging and rubbing at idle in reverse. I have 0.83" torsion bars, so no room for larger diameter bars either.