Question regarding the weld on bung noone in my area can weld to aluminum would it be ok to tap the elbow? Or would that affect the sensor? Sorry I don't know if this is in the right thread section I figured it be under engine managment

Pat, I know what your saying but I don't know if it would hold any amount of boost. The tubing is real thin. My welder does mine for a 20 or 3 for 50 just as a comparison.

Yeah that's what I was worried about I know tigging is the best method to use but up here barely anyone welds, I'm in the sticks .

Then drive out of the styx and have it done.