Well, that sounds horrible enough. The instructions I remember are that the rocker arm should be level @50% lift (90 degree angles at rod and valve). Although the LS engines have a higher cam location, this may not be entirely possible. I still need to obtain 8 LS coils to start my tinkering. Too many old 60s luxury cars have been showing up at my shop, and fraying my nerves trying to find parts for these badly wired fords and one failed '71 chevy truck restoration that I have to redo. We don't typically touch these project cars, but we hit a slow spot, and the boss got desparate, and said yes. Blech.
I hate it when people try to drive something that they will never like how it operates.
"Can you adjust the suspension so that my new truck rides softer?"
"You just bought it. Didn't you test drive it?"
"Um....yes."
".........." (incredulous raised-eyebrow stare) "How about dropping an engine block in back, lady? That'll smooth things out."