Whelp got this done this morning. Wasn’t able to get the right angle to get the probe installed at the neck above the turbo so I went higher up. Did the install soon as I got home from a long drive with manifold hot. Went very slow, stopping and starting so my pieces weren’t huge. Also didn’t want anything breaking. Made sure to use brand new drill bits and tap.
Started with 1/8” pilot and then did the 21/64” bit and 1/8”-27NPT tap. Took about 3 minutes to drill and tap the hole. Installed the fitting and the probe. I bought the autometer 8544 gauge as I’ve used these in the past with good success so went with what I knew. I also like the look of the 3rd gen factory match.
Since auto meter gauges have a known issue dimming with the factory dimmer, I opted to also install an autometer dimmer box. This allowed me to get my gauges as close to my dash as possible but also be able to adjust them more if needed with just the box.
all in all pretty smooth install. Thank you all for the tips and tricks and boost of confidence lol.