I know you can retrofit a "pump with a sump" as a self-contained unit, and that's the fallback plan, but a few companies are now starting to offer Impala EFI tanks.
Unfortunately, they only go up to 67 and mine is a 69. I don't know if the changes were trivial or important between 67 and 69, or if it could be made to work.
Does anyone know of a source for a good EFI fuel tank for a 1969? I'd like an in-tank pump, quiet. In the range of 450-500hp, nothing wild.