I just went on amazon and got a fuel pressure test kit that included a barbed tee to schrader adapter. My truck had rubber fuel hose going up the backside of the engine(don't know if that was correct or not), so I cut that and put the tee in place. The fuel gauge and hose fit perfectly through the gearshift hole, and I could just glance at the floor board if I wondered if the fuel pressure was holding high enough. Safety -- big whoop
