What Spark plugs for NO2? Mar 27, 2006 17:27:17 GMT -5 Quote Select PostDeselect PostLink to PostBack to Top Post by y2daniel1981 on Mar 27, 2006 17:27:17 GMT -5 OK, i'm getting ready to start nitrous. What kind of plugs should I look into getting? I know 2 steps colder but I dont know our heat rating