I like the goal you've set, but I don't think you really need the ported Y-pipe or manis to reach it. Or the exhaust work. Or the cooling upgrades, but they would help slightly if you end up hot-lapping. The plugs you seek are NGK Iridium IX BKR7EIX-11. I say this only because my best run so far(on Hankook Ventus evo110s) was a 12.107 @ 113.99 with a NW DCAI with X-Streams, 65mm SC pulley, latemodel21's BWK, the previously mentioned plugs with Magnecor wires, and a Eurocharged 1/4 mile "canned" tune. That was with a DA close to -500 though, so it definitely helped. The rest of the parts in my signature haven't been installed yet. I really need to get around to that soon...