There are 2 specs. The one Ford spec'd cams to be at that time and whatt hey actually spec'd out at. They can be quite different. Which explains why some cars are strong runners and some feel like turds.
Tmoss posted a chart once with the offical specs. I saved it and can email to you if you want. I believe he also measured his own cam and posted the results and it was quite different that the 'offical specs'. At least I think it was Tmoss.