First of all, what a pain in the ass it was. Hardest part was getting the sensor cable up to my pillar where the gauge was mounted. The thick wire/connector just would not fit between the dash and pillar. Took nearly 30 mins to get it through trying like 3-4 different methods. Got the bung welded right downstream from the header collector, at about 2:00-3:00 on the driver side of the H-pipe, facing inward. Then zip-tied the cable off to the tranny and ran it up through the shifter. Fortunately there was enough cable to where the main connection between the sensor harness and the gauge harness is actually inside the car sitting next to the shifter. Tomorrow I have to figure out how I'm going to get the wires to fit in the pod and down the pillar because right now it's SUPER tight and the pillar is just sitting on my dashboard with the gauge hanging out of it. ANYWAY, THE QUESTION...Where should I be sitting? I couldn't drive the car because I have wires hanging everywhere down by the pedals, and the pillar on the dash as mentioned above but... At idle it starts around 15 and within about 20 seconds it gradually drops to about 11.8. Goes up to around 12 something I believe if I rev and hold around 2k RPMs. Only ran the car for a minute. It was pretty much cold. Where do you guys feel it should be sitting around idle? Hopefully tomorrow I can get a WOT reading. I calibrated the gauge in clean air using Innovate Motorsport's method in the manual.