I reread your original post and you said you had it aligned. What specs did they use? Reason I ask is that I think I remember seeing somewhere that if your MMII suspension has power steering they like a little more caster than a stock Pinto/'MMII would call for, something like 3 degrees, I think. Could it be that when you changed the coilovers you also lowered the front end, which would reduce your caster? Insufficient caster can cause some goofy handling issues, like you describe.

Don