Has an AFL game ever ended 134-54?
Exactly once. On August 22, 1964, Carlton beat Fitzroy 134-54, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 134-54 in league history.
That makes 134-54 the 3884th most common final score out of 6,649 that have ever occurred in AFL. One point away, 135-54 has happened 3 times and 134-55 has happened never.