Losing my mind trying to get this 360 to run right

It had a holley initially which I was having issues with and I swapped it out with a freshly rebuilt carter. I had swapped out the power valve but to no avail. I'm leaning heavily towards cam timing. This does not act like a lean/rich condition it sounds like a sequence is out which is leaning me further towards cam timing issue. I'm just burnt out and ready for these big issues to be gone.