1973 Dodge Dart Slant Six Timing Chain & Gear

This old car has 59,400 original miles on it (I've put the last 200 on her)! Gonna do filters, plugs and put a kit in the carb this weekend. The car runs pretty good to have set for six years and actually seems to run better the more I drive it! Should I take the time to look at the TC&G or just go ahead and replace it (I'm pretty sure it is the original one)! Thanks!

Mike