Jims EVO cam relief tool For Harley-Davidson

If you want to use larger than stock or high lift cams you will have to take out some case material. To do this properly you need a cam relief tool. There are 3 versions each for a different engine type. The Twin Cam version is available in single or dual spindle. The dual spindel will safe set up time. Simply mount this tool and slowly turn in the threaded body as you power through a standard drill with 1/2" chuck.