Has a FIBA World Cup game ever ended 78-67?
It has. 78-67 has been a FIBA World Cup final 3 times in 2,041 games. The first was Argentina beat Brazil on September 5, 2002; the latest was Uruguay beat Chile on February 28, 2022.
That makes 78-67 the 96th most common final score out of 1,178 that have ever occurred in FIBA World Cup. One point away, 79-67 has happened 3 times and 78-68 has happened 1 times.