Zoomspeed

A friend of mine brought his car back to bone stock form, and gave me his DIS-2 HO. I know if I go with an MSD set up I'll need the DIS-2 for the trailing plugs and a 6 series for the leadings. I dont have a 6 series one at the momment. If I went ahead and hooked up the DIS-2 HO to the trainling coils now would that hurt anything, or woudl that cause some strange temporal flux? Where are some good places to mount it?

Zoomspeed

Oh jsut another question. Why do I ahve to use a 6 series and a DIS-2? Why not just a DIS-4?