Thank you Dave T.
Also, there is a hum coming from the fuel pump, but fuel pressure is running to spec. Once the hum started in January, issues of surging and stalling started to happen. I have had the heads replaced, valve seals replaced, 1 lifter replaced thus far, new water pump, spark plugs, and running 10W60 synthetic. When I received the car back from the shop after all this, the car seemed to run mint for about 2 weeks, when "tick of death" started and 2 instances of stalling on colder mornings. The "hum" from the fuel pump was/is still there? would this contribute to the issue of stalling? Should I replace the fuel pump or does this not matter? Should I also consider having all the lifters rebuilt, or replaced, along with re-sealing the oil pump? Should I just ditch the car? Thanks and sorry for any confusion.
Kris