Curious...
Manifold vacuum pressure is 20 Hg and steady. No fluctuations, dips, or wavering at idle. I replaced the fuel line that connect the injector rail to the fuel filter. It was crusty and was most likely the source of the gas odor since I let the car heat up and ran it around the block two or three times and parked it with no smell. The car appears to have stopped smoking now but I can't tell. Its difficult to see since it's 50° and sunny outside. There was nobody lingering in the parking lot that I could ask for help other than that golden retriever, and he wasn't much help. No bubbles, oil, goo, or crud floating in my radiator. The coolant is green and you can see the radiator fins through it, so it looks good.
On the not-so-positive side, I think something in or around the heater core sprung a leak last night. I will have to check the hoses under the dash now. I did discover the side of the block below the intake & exhaust manifolds looks like its soaked in some kind of fluid. I can't tell where it's coming from until I climb under the car. I'll have to break out my wheel ramps for that.