Not a performance person so I can't help there.
But I do recommend looking around monkeywrenchracing.
http://www.monkeywrenchracing.com/index ... b77mcpulv6
Seems to be the only performance site with a special 'corolla/matrix/vibe' section.
Send them an email if there's nothing on their site, if there's a way to do what you're talking about, they'll know.
::edit::
Did find this paragraph on their listing for used 2zz intake manifolds.
"Replace your damaged or missing 2ZZ intake manifold with this good used unit. We've also seen people adapt the 2ZZ manifold and throttle body to the 1ZZ engine for improved power output (we do not offer a kit or instructions for this however)."