If I remember right, it barely improved its 1/4 mile time. Like .1 seconds. I think they came to the conclusion that the stock motor is already tuned like a mofo to wring out 240hp.. and the SC just wasn't providing enough power since the S2K makes all of its power up high. and a SC makes its power down low.
so maybe a turbo would be a better application. i'm sure it can be done.. but there's probably gonna be a lot more involved than just "dropping in a turbo".