Re: spark plug recommendations !!
well i put ngk tr55s and the car didnt like it. the car would start bulking under part acceleration i guess running lean since its a hot plug. i then looked up ngk and it recommends the TR6s for the ls7, i then switched to tr6s and car runs awesome now. i have always used tr55s on my ls cars but i guess the ls7 likes a colder plug.
08Z06 Veloc. yellow. 490rwhp 452tq , K&N CAI , 160 stat, taylor race wires, HPtuner tune = 11:40 @126 mph (on stock tire)
05 SC-281 SALEEN #185 12:08 @115 just 4psi
Tune by LETHAL PERFORMANCE !!