Join Date: Dec 2003
Location: Benicia, California, USA
Programs: AA PLT,AS,UA PLAT,PP,J6,FB,EY,LH,SQ,HH Gld,Hyatt Disc,Marriott Plat,IHG Plat
Posts: 11,007
I wouldn't do it. As you already know, a very tight connection under any circumstances, and too many chances of even minor delays screwing things up. Now, if you don't mind overnighting in MNL in the event of a missed connection and are confident that PAL would handle rebooking you properly, you could take the chance.
In any event, you might get more replies at the Other Asian Airlines forum.