Twin turbo setups make a lot more sense on "V" motors, where there are two exhaust manifolds but even then they can cause problems if they don't both create the same backpressure. I'm reall not sure why anyone would want a TT setup on an inline, single ex-mani car.
As for the choice of your turbo Eric, you need to think about what you will use it for. If you're into Auto-X at all, you'll need to stay away from the huge high-lag models. You also need to consider the amount of other mods you'll be doing. because if you get a huge turbo but only have the supporting stuff to run it at 12psi then you could have gotten a smaller one to do that with and had less lag. Choose wisely :wink: