I just put a set of roller tip rockers on my 5.0 when i changed the cam. I have stud mount rockers and i have done the adjustment the same way i have always adjusted rockers and there is still noise. I roll the push rod with one hand and tighten down the rocker till it takes out all the lash being sure not to compress my hydraulic lifter then i went a half a turn past and they are noise as hell. pulled valve covers and went a quarter turn more and still no help. any ideas????