Go to
www.hurst-drivelines.com In the blue box on the left go to
technical help, then click on
technical articles, from there click on
clutch linkage installation and adjustment. Yes, it is for a non-Ford product but they are all the same. You will see the angle is 5-7 degress, to the front of the car for the clutch fork. This angle is a result of the lenght of the pivot. Lakewood sell adjustable pivots as mentioned in the article. This six page article should answer all the questions you ever had about throwout bearings and clutch forks.
Billk