Not to keep this convo going in someone elses thread but for the amount of work needed, it's not worth it.

You'd never notice the maybe 10hp that it "could" gain if it did, and because you are changing the way the manifold flows the VE table is now slighlty more off and a wideband with a tuner would be wanted to fix it. Alot of people can't do that 2nd part themselves.