Considering Holley sniper EFI for my 1969 340. Thoughts from people who have that set up?

I bought the retrofit Holley in tank Fuel pump that replaces the stock sending unit in my 74 Duster. It is a great kit. It is currently feeding my carb through a regulator. Maybe do that first. It definitely solves the problem of empty fuel bowls after sitting. If you still want EFI, you'll be 1/2 way there because the fuel system will support it.

Cley