As you can tell, the type of "fluid egineering" that I like to do involves a 16oz glass and hops .

The other option for a manifold would be to fabricate one from tube and plate welded together. Or a unit that bolts on to the stock manifold that joins the two sides together. Either way, yes it would be a lot of work.

Thanks T for the real life experence, I bet that would have been a fun project.