Digital gauge is an Auto Meter, mechanical gauge is a Quickcar,company owner by Lane Automotive in MI. Both in the $125 dollar range.Auto Meter is about 1 year old and was bought to check if car was hot.Only has a idiot light from the factory. Quickcar was bought 2 weeks ago to check other gauge.
180 degree thermostat.
I have used 3 different infra red guns, all show about same. Never above 210 and cycle temp with opening and closing of thermostat.
No Pinging, runs excellent. Paint on valve cover did come off but on top of valve cover not side by exhaust manifold, but is not discolored from heat, just looks like poor prep( no primer, just bare metal below)
So, my question still is, is it really 235-250 degrees? Are gauges wrong or gun wrong?