Looking at page 2 of the SAFC (not SAFC-II) instructions, our good ol' Maxima is listed... as HW-4. The 300zx is listed as HW-2

Now looking at page 45 of the SAFC-II instructions, they give an example of the "in" and "out" and use a Z32 MAF on a SR20DET and show that the 'in' is set to 2 and the 'out' is set to 5. (Normally, it would be 5 in and 5 out if the SR20DET wasn't modified)

So, by putting the pieces together, it appears that the correct setting is: IN 2, OUT 4; This applies to the A32 maxima using a Z32 MAF. For more applications look to the list below:

The Wizard