Tach works. So does the oil pressure gauge (though I seem to have misplaced the light that goes in it). The fuel gauge is a no-go. The sender reads 63 ohms as it sits, with about 7/8 of a tank. Should be closer to 10, 15 ohms there, and like 80 ohms empty. When I hooked the gauge up it went to 3/4 full and then clicked and went to empty. I reversed the wires and it went to about half full, clicked again and fell to 1/4, started climbing, clicked again before it got to the half and started falling, etc.