Compression Check Results and Plug Read.

Not happy with 25 lbs different in cranking pressure. Might have just started to push the fire ring towards the lifter valley. Just read the lifter noise on 6 and 8. That could be why they are off.
Seems like the lifter noise would more likely be due to leaking or worn drivetrain parts, and that would tend to shorten the timing duration and raise the numbers, not lower them. The numbers are higher that I would expect but who knows what is in the engine, or how accurate the gauge is. Compression gauge accuracy is something none of us ever checks.....