Slant 6 Split exhaust

GRW said
Anybody have any luck putting split exhaust on a slant 6? I converted the one barrel to a two barrel Super Six setup, and noticed a difference. I'm now thinking of adding split exhaust. Any thoughts? The say you can gain 15 hp., but that seems like a stretch.

check out waggins dual option for the slant (I stole this pic from somewhere but I do have a set for my slant too) and I think MeMikes valiant had a /6 with his duals on em too.
two for two.JPG