So after a painful weekend swapping out the lower intake manifold gaskets it was a relief to have the car leak free. Until today, not even 48-hours later. My son left for work and I headed out soon after. There was a Valdez-sized puddle of oil where his car had been sitting. Thankfully he works 1/4 mile away. I brought him my truck and brought the car home. When I removed the tire I could see oil pouring out of the connector for the oil pressure sender. I've never seen one fail this way. Actually, I've never seen one fail. It's ridiculous.
It was an easy fix but my patience is wearing thin with this thing. The new ignition wiring harness will arrive tomorrow so we can restore full electrical functionality.