Roush 2.3 tvs anyone running copper plugs.

[Turbo900rr]

So I have a 12 gt auto on 8psi. Nothing special till I do a build. Anyone running copper plugs? I’ve done a little research and it looks like copper plugs are still preferable in a performance application. Anyone else running them happily, or did you not have any luck and went back to an iridium plug? Thank you