Hey luke-44, just curious about something else...
Its hard to tell from the pics, but the passenger side plugs look to be coated with a bit more
oil. So the question I have is how is the
oil getting there in the first place and is this a symptom that also might be related to the motor missing under load?
If all else checks out okay, you might consider looking at the intake manifold to be sure its sealing properly. If not, its also a possibility that you have an intake/vacuum leak going on causing a lean/miss condition under load, and at the same time having
oil from the lifter galley sloshing up and getting sucked down into the cylinder head intake ports down into your cylinders on the passenger side. Some Intakes on FEs don't always seal really well if the slightest part of the gasket gets buggered up on the install (which is easy to do).
Do you ever see any type of extra or blue smoke from your sidepipes/exhaust, at any point?
Does the miss/break-down condition change between when the motor is hot/cold?
You might check/retorque your intake or look down the intake by removing your carb and using a small mirror to see if the intake is all black inside from oil on any of the intake runners on the passenger side.... Sometimes the intake needs to come completely off and regasketed to fix this type of problem; if this is the problem. Good Luck.
