Wydendorf machine has cam check tools, to make it easier to degree 4 valve 5.4 and 5.0 coyote engines. Many of the top Nhra factory shootout engine builders use these tools to make the process of degreeing the different cams easier. Used by engine builders such as Holbrook Racing Engines,Jdm Engineering, Calvert Racing, Jimmy Ronzello Performance and MB racing engines(Tom Martino). These are also the same tools that Nhra Tech uses to measure cam lift on stock eliminator engines in the teardown. For more information go to www.wydendorfmachine.com and select cam tools.