What brand of spark plugs have you had luck with
Cause if your making enough power and getting some cylinder heat generated, they hold up.
They work better with long duration cams, with a contaminated with exhaust combustion chamber.
I’ve noticed since running iridium plugs, and a msd, good wires, the plugs don’t really require any changing. I put them back in.
I think that’s what’s in any Hellcat or Demon or for that matter any high output later model engine, especially turbocharged or supercharged.
