Cast, Hyper, Forged? Timing?

I got about 5,000 miles on KB 403 hypers in my 340, redline is set at 6,500, 6000 rpms or a bit more is my daily habit all summer long. 3,500 to 4,000 on freeways for 15--20 mins a few times a month. No problems at all, has a great seal, engine temps never go over 200 degrees in 90 temps outside. No complaints at all, I had heard it ping a few times last fall, back the timing off a tad, its around 33 degrees locked out. The motor seems happy