It should be 62.5K, since your JFK-SFO is in 3 cabin F. However, I have been in your shoes where an agent probably thought you were booked in regular domestic 2-cabin F. If it has ticketed, I would leave it.
If you are interested, here is a thread that discusses a similar situation:
http://www.flyertalk.com/forum/ameri...r-f-award.html