Trying to install my ISSPro boost gauge sensor but the sensor is pretty big and the P-pump gets in the way, any fitting out there that can solve this?

 

The boost gauge source can come from any place.
I have tapped holes in intake horns, or installed hollow boost bolts in the intake plate is a great technique. Finally I have also use one of the ports that are plugged off from the factory like you are trying to do
Maybe screw in a elbow rather than a straight nipple style behind the P-pump?
They carry a bunch of little brass fittings at my local hardware store.

 

Yea I got a 45 degree brass fitting, tight fit but it works.