Hey guys I'm new here basically because I've never needed it until now..... so I've recently gotten an 89 gt vert which I have cammed but I converted backwards to a flat tappet cam which I have done several times with no issue I know it's backwards technology but it's a personal preference now the issue I've ran into is basically it keeps beating lifters out and loses oil pressure at idle the valve lashes are right with the correct pushrods and everything and everything inside of the motor is new and of good quality in kinda lost now any ideas?? Thanks in advance.