Hey, was going to race-change on outland from blood elf to undead, because undead have better priest racials. but there where no option to do so on your tbc servers so i thought that i can change in to a alliance and then back to horde as a undead.
It looked like it was going to work but when i changed it to alliance and has was going to change it back i get the message "Only Horde can faction change to Alliance."
so now im stuck with a alliance character when all my friends are on horde.
On Outland:
Faction change is only available from Horde to alliance.
Race change withing faction is not available.
GM can't help you with that.
Level new char on Horde (you got level 65 which is ~24h, much faster if your friends can boost you).
Or sell this ally char and buy new one on Horde side.