Do you think I'm asking for trouble if I have the stock unopened motor and stock heads with 110 unleaded? I figure as long as my o2's are above 770 with no knock, I'll be O.K. Check my sig if anyone has ?'s about any other mods. I know these injectors are done around 11.50's or so and I know I'm not close to that, so I think everything will be fine. Just wanted to hear some opinions before I run next week. I'll keep everyone updated on how it goes. Thanks.