Wouldn't you need 2x1 collectors on each side? There is a place called cone industries that sells all this stuff as well. But I really like the trumpets on the cyclex website.
Yeah, either 2x1 on each side with an upsweep, or maybe, just maybe...little extensions that would let it be 4 of those pretty things, 2 straight, 2 up?
I'm teasing myself, now...