Sorry if this has been beaten to death... I have no luck finding what I'm looking for with the search engines!

I have looked into tbi for my chevy L6, but now am trying to find what I can on a multi port system. I just don't see an electronic carb helping the front and rear cylinders to not go lean.

I had been thinking of a group fire system that would pulse each crank revolution.

Has anyone tried an multi port system?