Unholy to Blood

After playing from 55 to level 68 as full unholy, i noticed my dps never seemed to climb any higher (on average) than 300 DPS.
Alot of the talents in this tree focus on pets, tanking abilities for AE tanking, (Trash) and so on, its almost like a prot pala. Other than the pet, it feels a little un-exciting over a period of leveling.

So im opting to have a go with the blood spec. Its more of a High DPS single target, single tank class role, with self healing done by damage output.
http://www.wowhead.com/?talent=jfEMqh0IcfotzAoZb im 68, so this would be a good start in the tree for me to dive into.
I have tried duel welding, (in Unholy) and the DPS doesnt match the 2 hander sword, so i will try this with blood spec, and see if there closer. Im told DPS is x2 when switched to blood spec, so we'll see tonight!