Pressure source for MAP sensor
 

Right now, I'm getting my pressure for the internal MAP sensor on my v3.1 from where the BAC used to be (see pic).

Is there a getter place to get the signal from?

Well you want your map to read exactley your motor is seeing, so you want to take reference as close to the block as possible.

There is the stock nipple that points towards the fire wall, on on the inside of the manifold for the fpr and now the one you've created. I'd say any would do, but if it'd make you feel better you could swap nipples (sounds kinky) with the one below it. I'd say theoretically that's the "best".