912 swap to 2.7 911 wiring problem

[917 Star]

I just recently started a project converting a 912 to a 911 the size motor is a 2.7 I don’t know what year it came out of but my main question is figuring out how to wire it up because I only have a 912 wiring harness and MSD box. I’m little confuse because I found a sensor on the left side of the motor where the distributor it looks like an oil pressure sensor.

[Billthebuilder]

Pretty sure that an oil temp sensor. You need a 77 wiring diagram and the ignition diagram for your multiple spark

[917 Star]

Thank you so much for your help. I found a wiring diagram for a 1977 I think it makes sense now, but there is a oil pressure switch and there’s a oil sender why would they have two oil pressure switches? I understand they’re like a flow of oil going through the engine cooling it but that sensor is far away from the path of flow of oil.