Well, pulled the intake since I had the carbs off (see my 6bbl questions). Two lifters are wiped. I don't get it, I did everything correctly, at least to the Comp Cams documentation and recommendations from here. The springs matched the cam, I used the break in oil, plenty of break in lube on all surfaces. I am so frustrated and heartbroken as its summer and I still don't have a car to drive. I never had issues with flat tappet cams until two years ago. I thought taking some time off over the winter would help get me back in the mood, but seeing this happen is just taking the wind out of the sails again.
Not sure what I am going to do next. Spoke with the wife, and selling the car is on the table as an option now, and buying something new (new Challenger, Camaro, or Mustang, or maybe Subaru BRZ or C6 Vette).