Keep the ideas coming. Right now I’m not driving the car much, waiting on warmer weather so I can get outside and work with it trying to give the engine a good internal cleaning, pull and clean the oil pan and do an oil/filter change. At the mileage I’ve got out of this engine and the condition of the rest of the car it’s no great loss or disappointment if nothing helps, I’ll just continue to drive it as is until the end.