just rebuilt a 396 and installed a Lunati Voodo cam and lifters kit and folled there breakin procedure to the letter I also installed crane engizer roller rockers . My problem is valve train noise. I wen't to readjust the valves after the breakin procedure and found that all the lifters instlantly bleed down. And yes I preprimed the engine before startihg and yes oil was being pumped up to the rockers. Oh it's a hyd. cam+lifters. And has 65psi. oil pressure when running. aaaaaaaaaaaany thoughts or ideas?