Just thought I would let everyone know how this turned out. After several more episodes of this (acting like starving for fuel) and me changing out filters again, new primer pump etc... without success, I begrudgingly "strapped" car into local Indy and they diagnosed a pinched or restricted pick-up tube in the bottom of the fuel tank. Imagine that! I had not looked back at the tank as I had the tank out back in December for repair and replace sending unit and she had ran fine for a month and a half before first episode.
Anyways, apparently the bottom of tank smacked something again where it had been previously dented (I believe the first time occurred when the rear suspension was sagging) and subsequently choked off the end of the pick-up tube enough to cause me fits under higher rpm's or load situations.
Replaced fuel tank last night and filled her up and she's running beautifully. One of the reasons I throw this out is, this is obviously a good reason to keep maintenance up on the rear leveling suspension (aside from the obvious) as the previous owner did not and this was the result.
Happy Dieseling,