Xcessive manifold and primaries
 

I searched but can't find anything. I'm in the middle of the rebuild and now have an Xcessive manifold and was thinking if I could run t.he 1000cc primaries from the two middle ports and the two 2000 cc from the outer ports. Not sure how I would plug the block primary ports. Anyone done this?

People have and I was personally going to do the same thing you're looking to do. Unless you're good with tuning I wouldn't do it though. Keep the primaries where they are.

What a clean engine bay it would be. :)

There's better ways of cleaning it up. I've built many parts that achieve this process.

you can get plugs from mazdatrix that block the primary fuel injector ports.