The Big Fury was part of the park's "Fun Fair" expansion. It stood about where the lift of the Shoot-the-Chutes is now, or under the rollover inversions of Chiller. There was another path into that area then, and walking toward where the Freefall is now, the Big Fury was on the right.
This was an Italian built carnival coaster such as a Pinfari Zyklon. This roller coaster is often mistaken for a Schwarzkopf Wild Cat roller coaster called "Wild Rider" which essentially replaced the Big Fury in 1978.