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Just a few years ago, CNC-machining was the domain of Nextel Cup teams, but now it's becoming affordable for Saturday night racing. After line-honing, Jeff's Performance installs the block on this CNC machine. That finishes every other critical machining process except the final hone. Hill says this method is affordable because the CNC machinery cuts several hours off of the time required to machine a block, versus the old manual methods, and the results are better.