Ticking/chattering sound from sbc

Hi guys!

From the first day I started up and breaked in my new build engine, I have had this annoying (!) ticking sound.


I bought a complete set from summit: Trick Flow 420hp kit.



http://www.summitracing.com/parts/tfs-k314-420-395
It is a hydraulic cam with rollertip lifters.


in order to make a long story short, I have tried this:

1. different types of oil from Mobil 1 5W-40 to royal purple 20w-50 (which I use now)
2. I've tried everything from 1/4 to one full turn from ziro lash on the lifters.
3. I've switched to the Comp Cam hydraulic lifters.
4. I have shown the engine for several "well-known" engine builders here, no one has any good idea.
5. I've tried longer push rods. (7,900 in)
6. I sent film and mail to trick-flow. (those who suggested a longer push rods)
7. installed a roller- cam button frome compcams


here is a little film when I show the valve train geometry:

I've been thinking and reading a lot about ticking sounds.
and I think the sound is coming from the top. it is not the fuel pump or exaust leak.

I hold a thum on either

-the roller rockers itself. they just make such a sound

- I have too little oil pressure? Now I have about 2-3 bar at idle.
stock oil pump.

Thanks for your time! and hope someone can help.


best regards
Edd