My understanding is that the original specs were not designed for radial tires and so I use a SLIGHTLY more aggressive alignment for my driver.

Original:
.5 degree positive camber - .75 degree positive caster - 1/8 " toe-in

What I use:
.25 negative camber - 1.5 degree positive caster and 1/16 to 1/8" toe-in

Here is a good link:

http://www.allpar.com/history/photos/alignment/alignment-specifications.gif