The reason a carburetor gets too large and hurts response is the carburetor requires a certain flow velocity across the booster venturi to pull fuel out of the bowl. It stops metering fuel properly when air velocity is too low, so the mixture gets lean at WOT with too large a carb.
In an EFI system, the velocity critical area is from the plenum to the cylinder. With enough plenum volume the size of the inlet mostly just affects vacuum in the plenum. It doesn't change velocity in the runners or fuel mixture.
The result of this is we can grossly oversize a throttle body with no effect on mixture or airspeed in the runners. This doesn't mean the extra size helps, it just means it does not hurt. If we did that with a carburetor or with throttle body injection (pre-plenum injection) it would kill the same engine's mixture and power. Fuel would settle out in the plenum from the lazy air in a throttle body injection, or not be drawn with a carburetor.
It's a case of too big an inlet won't hurt if the plenum and runners are right, so we can take the vacuum to zero at the throttle body with EFI and a proper intake system. I still have a 70 mm on a 363 SC engine. The air pressure is ~15 at the TB inlet, and around 14+ in the plenum. With a bigger TB I could take that pressure drop to nearly zero, but I'm not sure that is first on my list for changes. If I was pulling air through it under vacuum, it would be a whole lot different story!! 90mm might be too small.