the infared test was done at a muffler shop here in huntsville.
just finished installing the new clutch (thermal clutch) and i cant get the temp over 180. i havent put a thermostat in yet. and the water has the watter wetter stuff in it. before the trip to nashville i dumped a can in the system and it dropped the temp 20 degrees, i was impressed . now that i look back im lucky to have done same as i probably would have had to fix the weenie for over heating last week end.
the non-thermal clutch looks like the thermal but it is a rpm sensitive clutch. more rpm less friction and fan turns less rpms. it is supposed to turm one for one at low less than 1000 rpm .
we all have a problem with the 454s running hot and when you pull a toad you have more heat to worry about.
your sencet in the block might need replacing . they are not that expensive . i replaced mine before i had the temp checked at the muffler shop. also on my engine the right side exhaust manifold runs hotter than the left side. im going to put a 180 thermostat tomorrow, and hopefully that will be the end of this effort.lol