Is there enough time to transfer from international to domestic airplane at PEK?

I will take Air China 990 from New York (JFK) at 12.50 pm on June 5, 2013 & arrive Beijing (PEK) at 2.20 pm the next day. Then I need to transfer HU7811 at 5.05 pm the same day from PEK to Guangzhou. I am a visiting student from USA and don’t speak good Chinese. Is there enough time to transfer from international to domestic airplane within 2.5 hours including going through the immigration desk and what is good procedure I shall follow? (i.e. counter or desk location and gate #). If I don’t check-in baggage in JFK and don’t need to claim baggage in PEK, will it save the time for transfer? I probably don’t have the boarding pass for HU7811 when I arrive PEK (I don’t know if I can get the boarding pass when I check-in in JFK).