The FD can handle up to 18T if the info on velobase is correct,
VeloBase.com - Component: Campagnolo Nuovo Record 0104007 (1982 - 1987, 3-hole standard band)
I suspect it can do better than that with a bit of tweaking but 24 teeth might be too much.
You might want to think about something smaller than a 52 for other reasons as well. You'll get better gears for spinning and it will be kinder on your knees.