So since i'm installing and ADII I decided to put in a fuel pressure gauge as well. from my searching you can mount them on the bleeder screw or on the test port to the left of the alt. I would prefer to use that test port and figure I'll need some sort of adapter to the 1/8 NPTF sender. Since I doubt my local HD will have it does anyone know the treads on that test port so I can order the adapter. I don't have access to my tools during the week, so thus the inability to go measure it myself right now.