The TW intake would be awsome with EFI.
Checkout DIYAuto tune for MegaSquirt info,click around that site for just about all the info you need on EFI.
I believe they sell individule injector bungs that can be plumbed for AN type hoses,that may give you a more "period correct" look without the tell tale fuel logs on both sides of the engine.
I think you will find with dual throttle bodies that they will both be about 99.5% closed to get it to idle down,efi seems to find the air it needs. I would also do a pair of carb bases for the throttle section,you could just about mount a 4" tube to the top if you wanted,LOL. A pair of used(up) Holleys gutted would do the job cheap, and trick the eye for sure.
If you havent done so yet look over some of Jays Road to Drag Week post for pieces of EFI tuning .