Hello, recently bought an 85 gt and love it, but shortly after purchase the temp gauge stopped working so I swapped out the temp switch with a new duralast one from autozone. Well the gauge started working again but it was reading way high, like too high, around the A or L in NORMAL. I swapped out the thermostat and rad cap, and even bought a laser thermometer to measure the block and heads which read around 170-190F which seems normal enough to me, any advice would be appreciated.