As well as the 16168625 PCM, using the same PCM modification in the link above provided by dave w.
This 16168625 is what I am in process of using for my TBI to TPI swap. The 16168625 is what came stock in my 93 Chevy K1500 4x4 and has the 4L60E transmission.
I'm just about finished with all the nuts and bolts end of it, and am now researching the bin modifications.
I'm starting with my factory stock BHAS bin I read out of the memcal, and going from there.

Keith
NE Tennessee