engine noise

I'm still trying to chase this noise down. I've spent a lot of time with a mechanics stethoscope listening everywhere. I feel I hear a more pronounced tinging sound around the passenger side where the intake meets the head.
The guy who built my engine was no help. He hears the noise but doesn't know what's causing it and couldn't give me any real direction on what to do next.

The motor has Enginequest heads with springs to match my Howards custom ground cam. The lifters are new OE roller lifters and the stock rocker gear. We reused the push rods, the engine builder thinks their length is fine. Could this be a push rod issue?

TrailBeast Touch your finger to the center of each rocker while it's running and you will feel it if it's a rocker/lifter/cam issue.
(you'll feel what's making the noise.)
I tried doing this and everything feels and sounds the same.

krazykuda Could you have a loose dog bone (lifter anti rotational bracket that goes under the spider bracket - keeps the lifter from rotating?) If it's not under the spider bracket that holds it down, it can rattle make noise...
Pulling the intake will probably be my next step and I'll take a look.