Sharing my alignment specs (70 Dart)
I just swapped some HDK upper control arms onto my car to get some more caster as it sees a lot more highway miles and it's something I should have done a long time ago. Not sure what the car was aligned at before (I probably have the paper somewhere), but guessing it was close to stock and probably ~0 caster and had similar "light on its feet" road manners on the highway I didn't care for. I haven't gotten a good caster measurement yet as my wheel fixtures hit the fender when I turn the tires, but just eyeballing the front and rear cam bolts to be even and setting camber where I wanted it, it "should" be around 4 degrees of caster per the way the arms are built. Car feels much more solid on the highway now and steering effort really didn't change all that much (manual steering, 24:1 ratio I'm pretty sure). If you hit the brakes and dive the front end around a corner it gets heavy, but nothing crazy by any means.