Tomei - KA24DE Adjustable Camshaft Gear (TA302A-NS16A)New for December 2019! Tomei has successfully developed the hard to produce slide type adjustable cam gear for the KA24DE engine. Because of the dual timing chain and small diameter of the cam gear, this piece is very difficult to produce. Now with the help of Tomei's adjustable cam gear, you can easily make fine adjustments to valve timing based on user need. Each scale mark on the Tomei Cam Gear represents 2 degrees (4 degrees crank), valve timing