It can run ok with any cam you want, but HPTuners is not a helper in such a job.
E67A is just torque based version of E38/E67. It has two HSCAN buses and additionally uses 1MB of the internal MCU flash.
It has same set of Virtual VE, Residual Mass Fraction and Virtual Torque Tables including Internal Engine and Accessory Torque Losses (mostly not available in HPT).
Driver Demand in this ECM is Axle Torque which is transferred to and completely processed by TCM. TCM decides how to split requested torque between electric motors and gasoline engine.
Entire Torque Model and Request area in ECM calibration is protected with extra checksum.
You can swap even to LSA, but without TCM tuning you will have exactly the same torque request limitations as with the stock engine.
TCM can be read with HPTuners as T43 so it has the same MCU, Flash/Ram memory map and even Seed/Key algo. But it is not supported for editing.
P.S. And for heaven's sake, do not touch Speed Limit By Fuel in HPTuners for this ECM. It is Engine Hot Temperature Threshold actually