Ive been reading and reading and talked to a few very smart people on the board and this is what i came up with because i was in the same boat as you.
Many people get into the low 11s and even high tens with the stock cam. Im going to leave myne untill i have the clams to get a hyd roller, just so that i will not wipe the cam. As long as you keep up with the zinc in the oil, thats a whole different can of worms that i dont want to open and turn this thread into, you should be fine with the stock cam unless you have already wiped it. Just pop in some new valve springs and call it a day.
Ive been told that a different turbo and converter will out do just replacing the cam. Just think about what your goals will be with the car and go from there.