Has an AFL game ever ended 67-30?
Exactly once. On July 11, 1903, Geelong beat Sydney 67-30, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 67-30 in league history.
That makes 67-30 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 68-30 has happened 2 times and 67-31 has happened 3 times.