I have another question , what valve covers are on the engine and have you looked to make sure the adjusters are not hitting the underside ?

One thing I have read on these pages , and experienced personally is that Comp hyd. cams can be a little noisy because of the fast ramps , you may be chasing a problem that is not a problem ?

I read where you say you could push down on some of the lifters and they seemed spongy ? That is the tolerance inside the lifters allowing the oil out , nothing is going to change that.

What exactly are you expecting for noise level ?? Roller lifters on fast ramps will have the sewing machine sound ???

Can you post a video of the sound ?