Outer Limits 4x4 Board

I am converting my tb42 to efi using a delco computer off vn and am chasing some info on the std fuel injectors.
I have an efi inlet manifold but no injectors so am trying to find suitable injectors.
The delco ecu requires high impedance injectors so would prefer these but can use lows with additional resistors i believe.
I measured the fuel rail o ring sealing diameter and is 10.4mm which seems would make it a 11mm injector style rather than 14mm.
Now the manifold diameter is 14.9mm which doesnt seemingly match to the common 14.5 or 16.2 square section seals.

Now to my barrage of questions
Does the original injector have a square section seal or an o-ring?
What is the original injector part number(not nissan)?
What is the original injector flow rate?
What injector part numbers have people fitted into the std fuel rail setup whether na or turbo?

Thanking you all in advance.

This might be helpful

http://nissan4u.com/parts/patrol_gr/er_ ... _2/type_8/" onclick="window.open(this.href);return false;