Right now i have the NGK TR6's in. I forget what gap i have them at (assuming low w/spray). When i put them in i had a 50 hp wet shot (capable) w/stock pulley, dynotuned, x-pipe w/bassani exhaust, and CAI. I have added a 3.0 pulley since then. I would like to get the Iridium's to reduce the missfires. I cant remember what specs i need on the plugs.. any input would be appreciated. Thanks.