[Raceboy]

Why would you need to run TPS only with EFI+ITB's??

Any decent engine management system has at least Alpha-N/MAP hybrid load strategy where you also have MAP as input for fueling thus having much improved driveability and mixture consistency against various air temps+humidity.
Absolutely no reason to ruin nice and clean look of ITB's and hinder their performance (and yes, I recently saw on the dyno with 3.8liter 964 engine that Singer-like intake plenum (looks fancy) held the engine back, after removing the plenum engine picked up nearly 20 hp.