Yeah i have found alot of stuff since my first post but nothing too great for building one.
Those variable length intake runners are awesome but need a massive amount of fabrication.
I was thinking about possibly modifying an aluminum L26 manifold w/ some resonance pockets on the top (don't really know them name of the part i'm describing but it'* the thing behind the butterfly valve on my pics). Not that by itself will not work. I know it'* not that easy. But i'm trying to use the stock parts as much as possible to keep it more realistic.

You said you found all the info on the lengths needed. Is it for a resonance manifold or a variable intake runner manifold?

maybe one of the moderators would have a way to contact Hector.

Ehis is not for the newer engines but the carborated version strait from GM maby give you an idea.
http://www.gmpartsdirect.com/perform...CATID=165.html