I just went to the track after the new circle d 258 and dyno tune. It went 12.56 at 108.5. Mods are roto fab, ebay headers to corsa, dyno tune and converter on street tires! I just picked up some drag radials but havent made it back to try them yet. I also just installed a nitrous outlet plate kit but have not tried it yet either. I was considering picking up a new diff with 3.45 gear and was curious how much difference this would make in my e.t.? Anybody have similar mods and made the gear change? Was it worth the 5-600 bucks?