Holley Performance 26-503 Fuel Pressure Gauge

For something costing into the hundreds, what you are receiving is a re-branded Faria boat gauge and an end of life Stewart-Warner sending unit in a kit. First issue is that the gauge constantly read 2.5 PSI low, over the entire range, as tested with two other gauges. Second issue is electrically the sending unit cannot provide much accuracy. Hooking a multimeter to the sender, the same resistance is provided for 4 or 5 PSI, like there is a dead spot there. If you just need a gauge that you rely on for go/no-go, I guess this would, but for accuracy this just didn't fit the bill.