In the TriStar it was triple the altitude then 2 miles for each 10 knots of wind. Example: 34,000 feet to lose with a 50 knot headwind = (3 X 34) - (2 X 5) = 92 miles prior. Of course add the correction for a tailwind.
Now I'm on the 737 NG so I just use the green dot and banana, although I do the math just to back it up. Never know when I might have that triple generator failure
(see other thread)!