What style tips for Dart Sport?

Finally dropped off my son's '74 Dart Sport for a new exhaust system, today. They will leave the tail pipe running long, until we get the bumper re-installed, so they can see how short to cut it.

Question: What was the original treatment for the end of stock tail pipes on the Dart Sports? It is a slant six, but we would like for it to look a little meaner. Did some of the models with larger engines come with chrome tips, and what style, turned down, square....?

Thanks,
Jerry