Builders: Square engine, Over Square, or Under Square for you?

The physics are the same but the cylinder heads aren’t.

High (how long is a rope???) rod to stroke ratios helped with undersized ports.

You can just about get any cross section you need if you spend the money.

Then it becomes less critical but it still matters because it affects cam timing.

That’s true.

I've never understoof the emphasis that Mopar guys seem to put on rod ratio. It's much lower in list of priority for proffessional engine builders and race teams.

That’s true.