I added the Percy's header gaskets and no more ticking. I will re-torque them in a few days just to make sure.
One thing that I noticed was when I pulled the TTI gaskets and over-layed the Percy's, the exhaust openings are not the same. The TTi's restricted my outer exhaust tubes slightly on the outer corners. You can see in the picture how dark the TTi's are in the corner. This dark area was restricting the exhaust flow. Probably not enough to hurt but the Percy's are wide open with no restrictions.