i think it would be best for me to get a dyno reading before i start modding anyone elses manifolds. I should be in possession of some figures sometime next week. Anyone going to santa pod? we could catch up there and discuss things further!!!
Just checking out your pics - your radiator looks a bit crispy unless it's a trick of the picture?? Might be worth replacing before you head off to a dyno - it looks to me like it won't flow much air and I would hate for you to cook your lump after all that work!!