Boku, I don't believe there is any reason Asian's should not snort speed over any other race. I could see why variation in race could cause slightly different metabolism of drugs but intensity of nasal pain differing between races is something I highly doubt.
It should be OK for asian friend to snort speed. As far as smoking goes, it really depends what your 'speed' is cut with whether it could be smoked or not, assuming it is smokable you can do it off foil which is rather wasteful. You are much better buying a crack (meth) pipe, they are technically illegal but I have been obliged at more tobacconists than I have been thrown out of.
The truth is, you are probably best off avoiding methamphetamine all together. It is a GREAT drug, and you have probably made up your mind. It can be a lot of fun, but after a while more than anything it is a big waste of time and money. Should you choose to take the dive, snorting would be preferable as it is much less habit forming in the experience of myself and many others.