I would like to be more knowledgeable about fuel injection paired with a crossram manifold. I haven't done much exploration of this application, but as my Dart starts coming together I may get serious about doing so.
Rich Nedbal did a crossram multiport EFI conversion on a Hemi where he kept everything inside the manifold except the two throttle bodies. Page 87 in his book How To Build Max-Performance Hemi Engines (SA Design 164). However, this was the MP crossram with the two removable top plates. In talking with Rich, he says there isn't a way to do it (hide the injectors & wires, fuel lines, etc.) on the STR or single piece intakes. I s'pose you could do a dual throttle body deal that has the injectors in the throttle bodies like a Holley Sniper system, FiTech, or other company's product - that's where I was at until I decided to do it old school with carbs. PM me with any questions.