Welcome to the forum!
There are a number of popular rules sets for Pulp-themed gaming, including .45 Adventure, Where Heroes Dare!, Savage Worlds, Astounding Tales, Pulp Alley, G.A.S.L.I.G.H.T., and a host of others. You can probably find reviews of the various systems and battle reports for many of them here on the forum (.45 Adventure has its own sub-forum here).
If your interest is specifically in Far Eastern Pulp-themed gaming, then your opportunities for online gaming or local tabletop gaming may be limited (you may be obliged to host/run games yourself to build up interest in such a specialized topic).
There is a forum for online roleplay gaming here (although I can't speak for the topics/quality of the games you may find):
http://roleplaymarket.com/index.aspxIf you're interested in .45 Adventure, you might want to hold off on purchasing the rules set, as a new edition with substantial revisions is due out in December.
I think that your best bet is to browse the Pulp forum here and ask questions.