2001WS6Vert

I just got the car running. I adjusted the Comp adjustable rockers like I always do (1/2 turn after zero lash). The valvetrain is noisy across the board. I have 6.0 liter heads. On my previous engine all these same parts were very quiet. Did I overlook something? Does anything change going from an LS6 to an LS7 as far as the valvetrain? I thought maybe the lifters weren't pumped up yet so I drove it around a little but it is still noisy.