BowTech Dually, my wife' s Pro 40 target shoots an even 260 fps with a 339 grain arrow while it' s set at 55 pounds and 26 inch draw. I' d bet you could expect a little more than that with an ' 04 Black Knight with the bearings in the new cam I' d guess around 275 fps! The new cams are supposed to be smoother drawing than the ' 03 Duallys.