I checked my 318 with the temp lazer and it was 175 to 195 on average.
Some spots are hooter then others on the motor but i did not really see anything hotter then 200.
My dash gauge reads a little high i guess.
My shroud helped a little.
I am running 36 total timing at the moment,but i might drop it to 34 to cool her off when it gets really hot out.