Default [Q] XT905 Rom compatibility

Hi all!
Can i flash ROM for XT907 on XT905? I know, maybe it is a dumb question, but i want to be sure that i'll not brick my phone.
Motorola XT905 : Carbon ROM + arrrghhh's kernel + Fly-On Modô
Motorola Atrix HD : CM 11
Motorola XT912 : CM 11 + JBX Kernel