I’m planning on install a true oil pressure Isspro gauge pod.

I don’t want to use the tap on top of the oil filter plate/mount.

My wires for the gauge are not long enough to reach.

I read on some other older Cummins forums that people tapped into the side of the block on the drivers side from one of the Allen bolt plugs.

Is this true and if so which one is it.

The one closer to head or closer to oil pan. See attached picture.