pat just curious what shop are you ought of. i ordered a comp micromter today about to pull engine clean up and put togethr. so to make sure im on the right page my current height is 1.950. comp springs are a 1.900 so ading a .060 shim would take me to 1.960 or -.050 keeper would highen up the spring to 1.950. no matter what i want a 1.950 installed height right. thank you for your help