There are some details there that are easy to overlook.

Also, I've seen/heard of massive gains by camming these well and ignoring AFM. I heard of L92's with bigger cams and LT's with something relative to a Nelson tune making big numbers with a non-AFM cam. Not sure what it takes but it seems like a non-AFM cam, non-AFM lifters in the stock lifter bores, and some time on the pump.

Sounds like something you can do from what I hear.

Have fun!