I've been researching spark plugs. I think its confused me more than helped. I know I don't need (as of right now) a step colder plugs because I'm not making much more power than stock. But I dont know what to get. What are the stock plugs? Are they NGK Iridiums with a heat range of 7 and a gap of 0.28? Is that correct? If not, what are the stock ones/settings? What should I upgrade to? I don't want to run copper plugs cause I dont want to change them constantly. How many miles am I supposed to wait until I change them? I read anywhere between 10k and 25k. I'm probably making around 280-285 crank horsepower so what are the recomendations for new plugs? Thanks for the help.