340 bore tolerance question

Im not sure if this applies but if an engine was honed using torque plates it can skew the readings,Ive had a couple blocks that werent checking out right on taper/ring gap top to bottom.With the first one I asked my machinist and he showed how much distortion there was by bolting on a torque plate to my engine and then checking it,it came out right then and I will always bore/hone with torque plates..