IMO, the only place oem stock fuel injection should be used, is in stock applications. It is very restrictive to airflow.
For performance, my first choice would be... go with aftermarket EFI and dual throttle bodies.
Or maybe, even a single large throttle body. (Tom Hansen's notchback comes to mind.)
Second choice, would be dual carbs.
Keep your oem parts, stored for the next owner of the vehicle.
