SB turbo headers?

Wow Matt,
That's a pretty stout motor!
(Still on paper) I will be falling in just slightly above
Nosretta's plenty potent combo, with 450 HP out of an N/A 408 and another 2- 300 from the Turbo....Ultimate goal is 6.50s on 93 Oct/ E85, 9.1, possibly a blow thru, and 3.55's or taller in the back. 2800 lb car.
My expectations are to run 6.50s in a primarily street car.
The Ritter or similar is always in the future but for some reason this year I decided the mini tub is done and completely back halved the car. Engine is out and on the cradle. Car is up on stands and the money is straight flowing away from me. I did manage to get a 31x18.5 Mickey STR under it. Figured might as well . Haha the are a few dudes around me less than pleased I chose to do this to a 1969 Dart 340 4 Spd Swinger. Oh well... always wanted a tub car and didn’t have the balls to tub my cuda when I still had it..