66 Dart sway bar

Andrew Martino said
Looking to upgrade/replace the sway bar in my dart. I was looking at summit racing and not really sure what Im looking at. Im teaching myself everything im doing as I go so I appreciate the input.

So it has a factory sway bar in it now?

And what will the car be used for? street and/or unpaved SJ roads? some autocross or track days/nights?