Dual Plane vs Single Plane Manifold with TBI

I have a Terminator set up and researched this question heavily. The techs on the Holley forums say there is no issue running a dual plane, however everyone else says that if using a TBI you need to machine down the divider 1" x 2" to help keep the signal balanced unless running a 1" spacer..
With all that said I've never dialed mine in completely, basically it has been just @ idle... Was just about to get it in the road for some learning miles but found some metal in my pan, so I'm having to start all over.
Which ever set up you are going to use I highly recommend you joining one of their tech forums and get it straight from the horses mouth('s).