Many thanks for your reply. I had the local wrench check the fuel leak downs and we verified at the ditributor the pressure was ok. That was our initial thought as well.
Cold start injector does not enter into the equation as I understand it becuz it is inop above above 40 deg. I replaced it anyway and tested operation.
I do observe that when idling rough if i leave it alone -- once the engine goes into lambda (the smog pump shuts down) it smooths out.