Buzzmc have you ever ridden in a car with a 4" stroke small block? Believe me a single plane intake doesn't hurt the bottom end. I built a 408 for my Dart, it ran 6.57 in the 1/8 on pump 93. Ported Edelbrocks. 10.9-1 compression and a Victor 340 intake. The cam was 260/264 @ .050, .628/.633 flat solid. It pulled everywhere, no soft or sluggish spots. Btw it was fastest shifting at 6400.
IMO the best headers for a really stout sb are Heddman Huslers. Ryan Johnson proved on a dyno they make more power than TTIs.
