Which Plug for me?

[uglyman8]

I keep seeing NGK Iridium 2314's, or 2315's....which are the best for N2O and Cam? My stock ones are shot to hell and back. 2314's I can get fast. but the 2315's seem to be an issue w/the local dealers....Thanks

[formerice]

If your running a 100 hp shot, run 1 heat range colder copper plug than stock. Gap them 35 thousands and replace them at least every 30,000 or thereabouts. With nitrous you want a hot spark and copper is the hottest. While iridiums may go 100,000 miles in some cars, I pulled a set out of my RT with 50,000 miles and they were shot, electrodes gone. Last thing you want with nitrous is a misfire. My NGK's were the 4306's I'm not sure, but you would be 1 range colder with the 6.1 so 4305's perhaps.