Started by pulling valve cover and hand cranking. All seemed normal. Reassembly and cranked it over to a perfectly behaving VW Diesel that had been dormant for 2 years. Eventually drove it around the driveway with no major problems other than serious coolant leak from drivers side head flange. I will be investigating that later along with the heater core. Should be fun...stay tuned please.
So I am still convinced something was preventing a valve or two from seating. Likely an acorn since i did spot a diesel charred split one right underneath the engine this morning. FWIW, my family thinks im the nut-lol. I think the high revving was a way for the ol' diesel to cough up the acorn out of the intake... either way all is well. Thanks to all that helped me. More to come- for sure.