There are chinese muslims in new york actually Dr T.

Not meaning to argue, just stating some facts, but yes generally the chinese overseas came from the south east and are cantonese or minnan speaking, depending on which area exactly.

http://en.wikipedia.org/wiki/Chinese_Islamic_cuisine

This wiki article states food of this kind can be found in ny.

http://www.villagevoice.com/2011-04-20/restaurants/yi-lan-halal-restaurant-mdash-on-the-lamb-in-flushing/full/

Review of one restaurant in NY also.

It is of note that there is no such food in Hong Kong, only turkish and arab food. Personally, I can tolerate turkish food, although I do miss those lovingly prepared and hand pulled noodles indeed!

guo nian hao!