cast iron heads vs aluminum for stroked 340

I've not ridden in a 4"+ stroked SB w/a single plane. But I believe a lot of the numbers I've seen, and most don't bother to post up numbers until 3500+ or so.

I've also been through the single plane on my car... With a predator carb, and the combo was awful - I'm sure it was due to other things not matching those two things, but it doesn't matter. There's nothing wrong with the dual planes, planning on using an Air Gap, it's going to work great, and it will, from all accounts, be better at lower RPM's than any single plane out there. It will also stink at 7500, which is where I won't be going anyway.

The cam choice will be more or less left up to the builder. I trust the man a lot, he's got tons of experience building bigger and smaller stuff. In the meantime I'm going to go off and start educating myself a little more about all the numbers regarding cams though so I'm better informed.