i have a b18a w/ open 4-1 header via dc-sports, aem short ram intake, and NGK wires (woo woo). and i ran a 14.7 at the track in muggy hot weather, But i think my motor is a freak. The only suggestion i have for you is if you are going to stay N/A then try and find an si cable tranny, because i have the LS tranny and it seems like 3rd lasts forever.