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Was going to run the Super today to see what the fuel problem is. But after I primed the lines with the starter, I noticed the fuel is discolored. Dark yellow tint to it. Pulling the cap and smelling the tank, it has maybe a slight sweet smell to it. Not nearly as bad as it was after sitting for many years, but I worry about the quality of the fuel in there now. The last thing I want to do it run the car on degraded gas, then end up with gummed up/stuck valves. This engine has maybe 80 miles on it since rebuild.

Hard to say how old the fuel is in the tank. No idea how much was in there when I brought the car to my house after rebuild. I've put fresh non-ethanol fuel in several times after driving for testing. Probably 15 gallons at least, over the last 1-2 years. 5 gallons at a time usually. I put fuel stabilizer on it during the winter.

What do you think? Drain the tank and start fresh?

The appearance and the odor you describe indicate bad fuel. I would NOT run the car on that, even for a short time. Find a safe way to drain the tank and dispose of the old, soured gas and clean the filter**. I'd put at least 5 gallons of fresh gas in the tank before attempting to run the car. It would be advisable to flush the fuel line and pump and drain the carburetor.

***It looks like the upper metal part of your fuel filter is distorted by having been over- tightened.
I'd replace that to avoid the possibility of a pressurized fuel leak under the hood, which could lead to a fiery disaster.

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Those are my thoughts also. Drain the fuel, flush the lines. The carb is dry.

I see what you mean by the bent metal. That is the integrated fuel bowl on the fuel pump. It is on the suction side, so no pressure. The fuel pump is also located at the very bottom of the engine. Stock Super 8 fuel pump. It doesn't leak at all, but I'll have to get a better look at it to see what the issue is with the way the fuel bowl is sitting. I do remember when rebuilding the pump that the casting in that location was damaged. Some sort of a crack/missing chunk on the outer rim of the fuel bowl seat. Probably not repairable and these pumps are hard to find.