I have a rough idle to but I know that my distribiutor is beat to stuffing. How many miles does it have and how often did the PO drive it? You mentioned the pressure sensor vacuum hose, change it and be careful to get the right size. Sorry I can't be of more help but without seeing, it would be parts changing not diagnosing.
I need a little info myself. What RPM are you turning at 60 MPH? and does it have a posi?