I think it's the head gasket
After a few more surveys I'm thinking it's a blown head gasket where there's opening between the cylinders. That would make sense for the common 60 psi pressure between the cylinders. If I remember right, I checked the pressure with a single spark plug removed at a time which would prevent it from going to zero. I'll try and verify that the next time I'm out there but I have a feeling it's going to be a long hard battle of getting that thing replaced.
Ugh...
Thoughts?
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