Has an AFL game ever ended 147-66?
Exactly once. On May 28, 1949, Richmond beat Fitzroy 147-66, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 147-66 in league history.
That makes 147-66 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 148-66 has happened never and 147-67 has happened 1 times.