I suppose you saw my recent thread about how big a difference a rebuilt carb made aboard TRADITION!
Tom makes another good point about the 327F. There is a metal cannister on the front of my 327F and I suppose you have one too. I opened mine up and was astounded to find it was so full of junk it would not even drain out the gas when I opened the plug on the bottom. Trace your fuel line and you'll find it. Also, you may well want to invest in a big RACOR filter at your tank, and a small fuel injection type filter right before the gas gets to your carb. I took these measures just to take those issues out of the equation. The more issues out of the equation, the better.
On the photo below you can see my final filter in line on the hose which is to the right of the flame arrestor and between the arrestor and distributor in this photo. It is a small "fuel injection" filter, and I only installed it there as a last resort, to get any debris that would be coming off the fuel pump or segments of the old line.
Also, you should order yourself a new crab distributor cap. They make a lot bigger difference than many of us would think.
Here is the big Racor I installed as protection to debris in the old tank. I drained everything out and didn't see much crap, but I feel better knowing all the fuel is going through this big guy first. I have it set up so I can switch into a carry on tank too, in the event we do some long distance cruising.
As for the carb, the AFB is a pretty simple device. Just take it apart carefully, clean it out with at least two cans of spray carb cleaner. Blow it out with an air hose. Replace all the parts in your rebuild kit in the same location as the old ones that come out, new gaskets, should work just fine. That's about all it takes for an AFB rebuild. I wouldn't mess with the fuel float, as it was undoubtedly set years ago by your grandfather, and those don't really change themselves.
Regards, good luck,
Paul