Register a free account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members through your own private inbox!
thought i'd post this. i had a flat spot at 5.5-6k rpm. didn't really bother me as i have a habit of changing up before then. not anymore! turns out they had bosch's finest spark plugs in there, whipped them out for some proper ngk ones, flat spot gone. mpg up. hth.