I've had the drag launch kit in for years, with 70/30's up front, no sway bar, etc, and it wasn't bad at all. Now I have coilovers, and I had to go to a pretty light spring just to get the same effect as the Eibachs. They worked pretty good. The only thing that I've done before that makes driving on the street suck is skinnies. You're breaking distance is so bad, it's just not worth it IMO.

Most older stangs have shot springs and struts anyway, so it's almost like a drag suspension.
