Has an AFL game ever ended 162-90?
Exactly once. On July 8, 1990, Carlton beat Sydney 162-90, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 162-90 in league history.
That makes 162-90 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 163-90 has happened never and 162-91 has happened never.