automoter gauges

so i picked up an electric oil pressure gauge and mechanical boost gauge and a/f ratio gauge. I was wondering where can i install the new oil pressure sending unit... which wire i tap into for the air fuel ratio gauge... and which vacuum line i need to tap into for my boost?

which wire i tap into for the air fuel ratio gauge... and which vacuum line i need to tap into for my boost?

I believe it will be the purple wire from the Bank 1, Sensor 1 (front) O2 sensor which is the H02S Hi line.

For boost gauge you tap into the vacuum line for the MAP (manifold absolute pressure) sensor. You should see the vacuum line that runs under the front (snout) part of the supercharger.