Update,,,
Purchased a temp gun, ran the car at home up to 210 and had my son shooting all the right spots with the gun, on the brass fitting that the sensor is in, on the front of the ali heads and even let the pressure out of the radiator and checked the temp of the water, 170 was the highest reading we could get while the gauge was showing 210, had already replace the sender so the gauge is *ucked yeah ??