Ok, so I picked up some viton o-rings and pulled the fuel heater. 2 new o-rings, a little grease and reinstalled. I pumped the hand primer and didn't notice any leakage. We'll see how it acts when it's cold again I guess.
Here is the heater. You can see seepage around it. That's all from just driving to work and back.
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I've already pulled the upper o-ring here, but it's small and barely fit anymore. The lower is still there.
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Here it is with new o-rings
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Here is kind of an example of what it was doing. It wouldn't hold an idle. It hard started. It would finally idle once totally warmed up. But was still hard to start
And here it is idling and running afterwards. I also adjusted the idle. It used to idle around 600. I had no idea that was wrong. When researching my issue I learned 800 +/-50 in neutral is correct. So now she idles just above 800
Disregard the mismatched screw on the heater. I dropped one in the snow. The new fuel primer is on its way and doesn't have a fuel heater so the screws won't be needed any more.