Dany,

I would love to hear more about how your 2 into 1 setup sounds, or better yet, a recording!
I am working on a split manifold for my Ford flathead 6, and have a certain tone in mind, more like an old Jag or a 240Z. I think the 2 > 1 or 2 > 2(one muffler) is a better way to get this sound, rather than straight duals, but I am looking for confirmation. I heard an old Jag MK II with 3.8 L6 that sounded just like what I am looking for, a nice growl, but not the blaaat or raaap from straight duals. Hard to describe, but I have a definite sound in mind. I think the Aston Martin DB5 from James bond movies has a similar sound, I will need to get Goldeneye again for the car chase scene at the start of the film to confirm this...

Nick