Tti headers or not?

The guy who built the motor or ran the dyno should of given you an idea of what you need? I have a set of TTI headers on my new build, and i am happy with them.

My old 468 BBC made 708 hp and 622 tq on the motor, 1006 hp on nitrous. I had a 2" hooker header with 3-1/2" collector. Should of had a 2-1/4 " primary tube on that combo.