Ok, you've seen the numbers. Mod vs. mod, the S/C ultimately fives you some extra horsepower, unless you d omore than "just" the 3l swap. David Z put in the 3.0 and a bunch of other goodies and has one bad a$$ tour! The other thing to consider is that the S/C comes to life at a certain RPM, meaning down low, the car performs pretty much the same. With the 3l, the power is increased all through the RPM range. If I had to choose....I'd go the route of David Z. Imagine telling the ricer you just smoked who's got turbo, etc. that your car is NA! Priceless....