FiTech EFI system

Ah, directions.
It appears I have the Performance Indicator connected to the rear top ported nipple, doesn't work there.
There is an un-ported nipple in the rear as well, and my distributor is connected to the front nipple which appears to be un-ported as well.
The instructions state to use the rear ported nipple for distributor advance.
I have read that for the distributor, use ported for an emissions controlled engine, and un-ported for a non-emissions controlled engine.

Is this correct?
Which should the Performance Indicator be connected to?