Finally decided on a cam for teen SB. Should I bother with header?

Thanks Rusty.

So have not yet swapped cam, but I started to replace my Pypes mufflers with Thrush Welded. Got one side done only, started it up to see if I can hear the difference, and so far I hear the Thrush sounding slightly deeper with less sound clatter sound like Pypes. Moved my ear right behind each one. Drove it and the Pypes sound still comes through loud and clear with tons of droning.

I sure hope that mostly goes away when both are done. The reviews on Thrush ranged mostly from too quiet to nice replacement for Flowmaster. Did not hear much on droning.

To be continued.