Early 72 340, is this one of the de-tuned ones?

Oldmanmopar said

First is pressure test, Then magnaflux, then sonic check the bores. Without doing those things you never know what you have

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Exactly. Also sometimes the ridge "look" can be deceiving. Best to measure first. I've seen a few that were still in spec even after honing back round. It's rare but it happens.