well your using a hyd lifter in the block how do you know your not pushing the in the lifter valving and taking up lash ? hard to do with your stock springs on it there is valving in the lifter any were from 060 to 090 then like i said need to be check at mid lift with a set of test springs should be in center of valve stem at mild lift .i do then all the time thats the rigth way. so thats is the only way i do them