Has anyone had experience with iridium plugs on their supercharged 80? I am considering going this route, have read some internet forums where guys prefer them over platinums in boosted applications (everything you read on the internet is absolutely TRUE after all). My local NAPA has a part number for Autolite plugs ASPXP3924, but I don't know if I can get them in a colder heat range. Any help would be great, thanks.
