[CLV8]

Well I've done a partial test which should required a full engine reassembly but here is what I did:
I've resinstalled rockers assembly on one of my head without valve springs. As there is a "line" on each valve showing where valve stop when full opening I make pictures of rocker when valve is closed and when valve is open (stopping rocker when "line" on valve reachs the top of the valve seal).
OK this test should be done with head installed on block, pushrods, etc... BUT does my test doesn't show a rocker pivot issue / pushrod lenght issue ? which could have caused my valve wear premature failure ?