twisted wedge & cam selection

[onearunem]

i currently have used the stage 1 cam by tfs, and was wondering if i was able to use the stage 2 cam with these particular heads, they are the street heads by the way, the stage 1 cam did not impress me by any means and i was leaning towards the more aggressive lift and duration #'s the stage 2 has to offer. has anyone used this combo, and also i read it says max cam lift with these heads are .540, please help me decide on what would be my route to go in this situation.....