after suffering a roller lifter failure I have been investigating trying to find the root cause. My first question is does a thicker push rod wall thickness necessarly mean less deflection and ensure better valve train control. Is there such a thing as to thick? I know the Predator heads use alot more spring pressure than conventional heads such as Stage 6 and Trick Flow. Is .080 thick enough with say 250 lbs seat pressure and 600 open or should it be thicker. Thanks Birdtracker