There are no blood pvp guides because blood is not a pvp spec: ok it's a good FC spec but there are other classes that do it way better.
But if you really want to play it I'd suggest you to go for mastery and stamina. Back in Cata I played blood aswell in pvp because I'm not really a pvp-hero so I just played whatever I felt like to play but now I'm trying frost 2h and I assure you it's 1000 times better.