What I'm getting at more say stock cammed 2bbl 360 makes 330 tq @ 2500 rpm with 4bbl headers makes 373 tq @ 2500 rpm add a xe256 & xe268 and still makes around 375 tq say a xe275h drops down to 350 tq @ 2500 rpm, an xe285h say 325 tq @ 2500 rpm why is the 275 and 285 and maybe the 268 will usually be considered less drive friendly and stated cause will be considered the loss of torque.