Ok, so here we go.
The car seems to run alrights idles, revs up (a little weak maybe)
150psi compression, the valves seem to work fine when turning the car over with valve cover off. 3g lifters. The sound really sounds like a top end noise. Head was rebuilt fairly recently due to how clean it is and new gaskets.
I've tried disconnecting the a/c unit in hopes it was making the noise, disconnected each injector when running 1x1 and checked that the exhaust manifold wasn't way to cracked and making the weird noises (long shot I know). The oil level is fine, no particles in the oil on a recent drain/refill.
I spent some time with a buddy trying to nail this down. Should we pull the side cover and remove the BS belt to see if thats possibly the issue? Any other ideas?