Cheap/easy PCM/CMR fixes and custom tunes

I'm starting to research putting a 6.1L into a '69 Barracuda convertible with auto tranny (Perhaps Keisler) and with factory air.
The MP Crate motor with the AEM controller does not appear to use the O2 sensors - which seems to defeat one of the main reason for FI.
What PCM and mods would you suggest so I can haveclosed loop capability??
Thanks
Jim

Just because no O2s are included, does not mean the ECU is incapable of using O2 sensors for closed loop feedback.

Every AEM EMS is capable of closed loop. So I'm pretty sure you could add at least one O2 sensor with the appropriate wiring and calibration.

With that said, if the calibration is very precisely tuned, the added benefit of using closed loop diminishes.