I want this!!!

OK so this is wicked cool and i got me thinking. Is it hard to make manifolds? If it can happen......a manifold with 3 one barrel carbs? 3-pak? kind like a six pack but with one barrels and a slant 6? it wouldnt flood it but i think thatd be the balls

Here you go: http://www.pentastarparts.com.au/sunshop/index.php?l=product_detail&p=490

As far as making manifolds. If you have a foundry,and a lot of money the sky is the limit.