It's a fascinating period of history. When Athens decided to invade Syracuse during the Pelopponesian War, one of the things Niceas pointed to was that Syracuse held their own against Carthage, which had a navy and army at least as great if not greater than the Athenian-controlled Delian League.
Unfortunately, we don't have as much information here. They normally say history was written by the victors, but even more so, history was written by the Romans. Even the mainland Greeks didn't care so much what happened out west.
Yeah you'll find an amazing diffference in the history written by the greeks in Roman employ (polybus) compared to the Latins writing about Carthage, read Livy's talk about the battle of Cannae v Polybus'. Did a report on that very subject.