It really depends on what all you do to it.... Straight from Calmini, the front tracel is slightly increased while the rear is increased by a few inches (if I remember correctly). With a few tweaks, you can get more out of the front and rear travel. Look in the article archives under Hagen Sport for : 1- front end widening, 2- rear axle over rotation and the rest of his articles for some good info.
Calmini 3+3 lift, no tweaks (full flex):
Calmini 3+3, OME Struts, front end widening, rear axle over rotation+longer rear shocks (not at full flex):