AEM FIC works perfectly

[Tamago]

the issue with huge injectors and the FIC is that it really is not an actual tuning device. it's just skewing the stock graphs (+ and - the numbers going to/from ECU). this is one of the reasons that the FIC can be troublesome if not properly tuned (the factory ECU catches on to what you're doing and ruins your tune, unless you take proper volt clamping measures and spend a considerable amount of time either on the dyno or making street pulls and drives around town and on the highway in all types of weather)

and yes, i ran tC injectors on the xA with no real issues, other than things that were my fault to begin with.

i'd imagine the 360 or 370cc injectors from the 2AZFE (camry, highlander, rav4 and tC) would work great for you :) ..