no corrosion or pitting, or scaly deposits that I can see. A good cleaning and you should be good to go. Verify the float is good by puting it in a can of gasoline (they can saturate and not float properly).
I wonder if going to a super duty fuel filter might reduce this kind of build-up, rather than the stock paper filter.
Wow, that sucker is dirty! I plan to rebuild my carb/clean out my intake manny next week after pretty much eliminating everything else. On a recent long highway trip (my first in the Terc - loveliness indeed), I managed only 27 mpg. Previously I got 30 mpg in town and that was prior to removing the a/c and p/s belts (part of my '09 fitness program).
One of the first things I do when getting an old carb'ed car is slap in a glass see-through fuel filter. You can get them for circa 10 bucks anywhere and it' a great way to monitor any garbage coming from the tank. Incidentally I ran out of gas while in line to get gas at Costco today. Total Crackerjack timing, but I was only able to fill up with 11.7 gallons. Strange since my gas tank is not dented. At least I know that when my new-to-me gas gauge reads "empty", that means freakin' EMPTY.
Yes, I will light my Jimi Hendrix candles as always during my carb rebuild.
It's a scientific fact that in a twin engine aircraft, when one engine fails there is always enough power in the remaining engine to make it all the way to the crash site.