the radial tire specs will work just fine for your tires.

a lot of people assume that the modern performance specs are so different from the original OEM specs  because of the change in tire technology.  In fact I see it as a standard answer all the time and even believed it my self at one point, but it is not true.  I read an interview with Klaus Arning talking about mustang suspension and it turns out Ford dialed back the optimum settings because the steering was to responsive.  They felt at the time that less responsive handling would be safer by avoiding the human error of over correction and they were worried that a car that handled better would encourage people to drive faster.  Ultimately they dumbed the car down to save drivers from themselves.   

I didn't say that.  Bias ply and radial will make the car handle differently.  All I was saying is the same alignment specs will work for both and explaining why Ford's OEM specks are so bad.