New to drag racing. Need advice.

Steven190 said
two things, get a track link or go to a 4 link rear suspension.

I am somewhat familiar with a 4 link. What's a track link?

Anybody got suggestions on a kit I can buy to put in?

Again, I'm not looking to break any records....yada, yada. I just want to take this barn find and make it run the best I can.