The race version blocks talk about cam bearings moved up in the block and the size of big blocks.Does that mean they use bbc cams??. Really like two versions.The one that is a huge bore size I.E. 455 c.i. and the tall deck block.Both$$$$$.I is just easier to ask you guys than do a search.Have either of you built one or the other of those blocks and what was the end result??.Hp/torque??.