Question, 3 2 barrel throttle bodies on V8

From my readings for Megasquirt, usually the injector drivers used in computers can only drive 2x "TBI" style injectors since they have a different impedance than MPFI style. The other thing with EFI is that you'd not want progressive linkage on a TBI setup. It's actually OK on a "dry flow" 4bbl throttle body with port injectors, but otherwise, they should be 1:1.

If you want EFI for any reason other than better cold starting and drive-ability, I'd jump directly to a multi-port setup.