Hi Pete, ACCORDING : www.injection...ulletin75pdf
Ford RELAY: V85AB9P 704 BA has PIN 87 and an extra PIN 87B.
Just read the above pdf.
Relay PIN 87 - Power supply to EFI system connected to all EFI related components, when require a12 volt supply. Whilst cranking or running, battery voltage should be presented.

Relay PIN 87B - Power supply to fuel pump connected to the positive terminal of the fuel pump. With the engine cranking and running, battery voltage should be present.

The S1 Relay has PINS: 15...30... 31... 1... 87.. 50.
Relay V85AB9P 704 BA has : 15...30...1...87...87b...50.
As I only find the Ford Relay Part (V85AB 704 BA)
Can I use the PIN 87b instead of PIN 87?
Thanks your helps in advance.
Tony