[Richard L]

My answers in Green...

Originally Posted by Canonshooter

I just want to make sure I'm reading the diagram below correctly;

1. I am only using IDC so the MAP sensor connection to pin 6 is not required (the MAP option is not progressive, on/off only - correct?).

This is correct. The HFS-3 can be triggered by IDC% or MAP sensor. In either case, the system will be progressive with IDC. There is any option for the H3 to be progressive to MAP sensor but require under-board modification.

2. IGN-SW #2 is pin 19

Yes

3. No external engine management for map switching, so the MAP SW connection is not needed.

Yes. This is correct. Unless you want to use this output option to trigger ECU into "limp home mode". I would stay with boost cut option #5 below.

4. FUEL INJ (-) is pin 11

Yes

5. OE Boost solenoid is pin 27

Yes