Well , it has been about a week now since I replaced the Plug Wires, Distributor Cap & Rotor (Beru) and no stumbling at all.
I am keeping my fingers crossed and will report again in a week or so.
The thing is, like all DIY's who know their cars very well, I do hear an occational ( very faint) miss from the bowles of this motor...Not sure of it's origin, but perhaps it is the airflow pot lurking in the backround.