cworth, talk about coincidence..... I am playing with a 1958 Plymouth Suburban 230 Cu inch L6 and I too have a home "backyard" foundry. I'd love to see more dyno runs on you tube when you are ready. I'm in the middle of setting up dual carbs on mine now.
Here is my header.
Bulit by a guy that comes aroud here upon occasion called Moose.
Keep the kewl info coming!
