[car4jim]

Thanks for all the responses. I do appreciate Rick Lakes detail question line. I think I will call as suggested to go over some of the details. Here is some info on my problem. I'm working with a high-end FE crate motor to makes about 600 HP and 600 ft-lbs. This car is a weekend cruiser, no racing or abuse. The repair started when I replaced all of my valve springs. Unfortunately when I went to lighten down the lifter banks. Push rods were not centered in hydraulic cups and I broke the casting lip/edge off on two lifters which is why I need to replace two pairs. I do not believe there is anything wrong with my cam shaft.