Yes they really bring the nostalgia back into it too, for cheap.
The one I saw on the weekend was running a 265 Hemi, it ran a best of 10.5 I think, which is bloody good without a turbo
There were quite a few FED's running in modified on the weekend at Round 3 of the NSW champs at SD. A few interesting 6 cylinder cars that were holding off the big boys as well.
I wouldn't mind building and running one myself but I don't have the first clue of where to go.