TOPIC: New to FiberGlassics

Hello all new here been trolling threads for about a year I have a 68 niagara I picked up for free about 5 years ago in Maine when I was stationed up there now in Virginia beach and getting it ready for the Chesapeake bay after a transom rebuild. Question for the Niagara owners what length of NFB steering cable is needed? I'm updating my block and tiller.