I've used several of the various types and settled on the Fairbanks kit. Some of the simple improver kits are nothing more than a new separator plate. I just put a Fairbanks kit into my 72 Challenger. Like said above, you likely will want a kit that has several levels based on your desired results. I selected the heavy duty/street level. While the valve body is out, do get the manual shift valve that prevents converter drainback. It is inexpensive and works.
