the timing is at 14 deg right now.....I'm thinking about sneaking in two more deg. It's grumpy when it's cold (thanks speed density) but at 14 I have to run 91 AND Lucas octane boost. With out the Lucas it pings pretty good. I could turn the timing back down but it's only like a buck more to fill the tank up on 91. And it runs SO much better that way. Been at 14 for about 6 months. Just added an off road H last week and that woke the car up!!