[Jack21]

Try a different alignment shop. The spec's you want are factory '76 - '78 Mustang II, except you want your caster angle equal on both sides but somewhere between 3 and 6 degrees, the closer to 6 the better.

If you're lucky, your alignment will stay put. MII alignment was not one of Fords' better ideas. If not, bethania-garage.com has a pair of brackets for the MII that let you align with shims, like GM cars, and it stays put afterwards. ($100)