Caster is the lean to the rear the kingpin takes......think bicycle front fork, it has lots of caster. Usually on an early Ford frontend, between 4-7 degrees is considered a good starting point.

Toe in is if you look down on the tire from above, the front of the tires are closer together than the rear of the tires........think Pigeontoed. They say 1/16 inch to 1/8 is normal, but I have also heard up to 1/4 toe in. ( I actually had to toe OUT my 27 slightly to clear up a shaking issue........a tip I read in one magazine) But I always start at 1/16 and go from there.

Camber is the one you can't change easily. If you looked dead on at the front axle, it is the inclination of the kingpins toward each other. They lean inward at the top. The only practical way to change camber is to have a shop that knows solid front axles (like a truck shop) put it on a rack and bend the ends of the axle using jacks and chains to hold it down while bending.

As for your tires wearing on the outside, I think two things could affect that....too much toe in and too little camber. The car is riding on the outside of the tires or scrubbing the outside edge off going down the road. I'm not a front end expert, just a casual observation.

I bet Denny has one of those nifty charts that shows all of this.

Don