I think it's piston slap. Is the car where you can actually drive it and get it heat soaked really good? If it's quietening down at all, I vote for piston slap. IMO, that's an acceptable noise for a true HP engine to make. Not necessarily "wanted" but acceptable.
No Sir, I haven't tightened the LCA or Struts yet. I did a drive way Alignment. But need a level spot to set ride height. Alignment place is about a mile, Lil less.. I did shut her off, and let her heat soak a Lil. Temp didn't raise tho..