ITBs are kind of fools gold to be honest. I have extensive experience with All Motor (albeit mainly Honda).

ITBs will take a TON OF TIME to tune correctly. Im really not sure there is any REAL tuner besides Ed that has enough experience All Motor to tune them correctly. Thats not a shot at anyone locally, but ITBs are extremely finicky and usually require top notch engine management to make them run right. Not sure I trust megasquirt (isnt it like Chrome? freeware?)

Individual cylinder tuning is the best way to do it and thats a pain in the ass, expect 10-20 hours of COMPETENT tuning.

A stock internals motor, prob not so much. You would honestly see more power from a properly sized Intake manifold and cams/header than the "bling" factor of ITBs. ITBs dont necessarily make power either. That is the biggest misconception with them. People think they add this rediculous power, they dont. You usually will achieve a fatter midrange, but at the expense of drivability.

May want to rethink your strategy. IF the motor is stock, youll see a much better drivable car from I/H/E and a Rear end gear than ITBs alone.