This is the one I bought, it's for a Honda stock replacement but it has electronic advance. Probably not as much as a "racing" one but it still made a big difference. Ebay item number 350052132940.
http://cgi.ebay.com/ebaymotors/HONDA...2940QQtcZphoto
They have a lot of others but that is the one I picked, works great. And they offer International shipping.
Good Luck