Hmmm.....frankly I think "short-circuiting" the 2 MAF inlet sections together is looking for (throttle response) problems and other big troubles. Kimosabe say NO GOOD. :squintdan
Don't forget that almost all inlet-side systems have had to 'fool about' to find the correct positions for the MAF. Now with that setup the air flows are a common pool and thus likely irritating for the MAF dynamics. In theory they could have dropped one whole inlet side if there was enough throughput. This kind of intake manifold may have worked just fine for good ol' fuel injection systems of bygone days, but it's probably not applicable on the evolutionary tree of highly tuned turbo systems.