YIKES! O..o... orion... Iridium plugs are FANTASTIC plugs to go with, especially for high boost applications... Copper are great too, but you'll change them more than the iridium... Platinum are worthless in a boosted car, I had so much chatter with them, ping and misses... Iridium fixed that quickly... I paid $6 a piece for my NGKs at O'Rielys... I'll be breaking my motor in on coppers, but will be switching to Ir plugs after the break in... Anyway, Im glad you got your car running well... Im really glad you got those nasty plugs out... lol... YIKES! It looks like they were sittin in the open for a while...