slayer sxc 50 frame

hi, i plan to build a trail bike whit this frame whit parts that i have around almost new but i want some opinions about the performance whit real owners of the bike, i gona put a 140mm pike in front, how the bike is gona ride?, i now that the frame is designed for 160m forks, but i already have the pike from other bike set up,so im have to use it, and how this bike climbs is heavy is fast? climbing is real important to me i now that in downhills is good , right now i have a specialized pitch and is my all mountain bike i want the rocky mountain for like a more cross country trail bike thing, do you think is good idea? thanks