COMP Cams Timing Set LS RHS Single 3KeyNew to the lineup of COMP Cams timing sets are the LS Timing Sets for Raised Cam Blocks. These are engineered for use with Cam blocks raised. 388" above stock, which includes the popular RHS LS Race Block and Dart billet blocks. Available in a wide variety of options that include 3 keyway, 9 keyway or Hex Adjust, 1 or 4 pole reluctors, and single or three bolt Cam cores, you're sure to find an LS Timing Set to fit your specific needs. Catalog User 1