I have a FITech on my 493 with a 260/266 @ 050 cam.

It doesn't have an option to go open loop or Alpha/N in idle, but with some trickery I got it to clean up at idle. FITech does have software to tune via laptop, I will say the software sucks, and they explicitly do not support any tuning you want to do on your own, and they don't document things very well either.

Next car will get proper MPI with a Holley ECU

Faster, Faster until the thrill of speed overcomes the fear of death...

71 Swinger - slowly collecting dust/parts
66 Belv. II - just a streetcar
88 Mustang - turbo LS beater