how do i go back to stock rom?

is there a way to go back to the stock rom? i wanna deodex and i cant running rubix 1.9 on 2.3.340.... any ideas?

If you didn't make a nandroid backup in Clockwork Mod, then you will have to SBF back to stock.

And im sure that rubiX comes deodexed.. So why would you need to if you don't mind me asking. :P

Sent from my DROID X.