A different Q on 340 Vs 416

That's why I started using hydraulic roller lobes with solid lifters and setting cold lash at .002 and let it run.
Alright thats one way to do it,but why not just run a sensible street solid roller at that point and get more lift for the same duration? alot of Comp XE solidrollers out there doing alot of miles with no isues and i believe those Lunati wodoo cams seem to last quite good aswell and both series run reasonable lash.
yeah it's loose lash and valve bounce/ float that kills them

Yeah loss of springpreasure is bad news for sure,much worse than on a flattapet.