Anyone running Iridium Plugs?

[viper98885]

Is anyone here running Iridium plugs in their V6 motor. If so, what do you think. I have been thinking about a set for my 3.4L V6...I need something to burn hotter with this cam.

[Ttop34]

Actually I'm running them, I have suspisions that that's what's slowing me down though. I'm going to go with some cheap copper plugs or maybe back to my stock ones to see if I can hit 90mph in the quarter again.

[ December 04, 2002: Message edited by: Ttop34 ]</p>

[IBJanky]

Just use AC Delco Rapidfires. They're the best IMHO

[sped214]

I ran iridiums for a while. In my opinion, they suck. Switched back to rapidfires, and will probably stay with rapidfires unless some "magic" new spark plug comes out that will work better.

[Dominic]

Copper wears out awfully quick, and iridiums just don't even conduct as well as plat's from what I've read - however they don't wear out :D I'd just go with rapidfires or some good NGK U-grooves, always had a lot of luck with those.