SR Runs Hot: Especially on the Highway

[GripSpec]

12/28 UPDATE WITH PICS:

Today I bled the coolant system and installed my mechanical fan with shroud as you guys suggested. The temp still seems high to me. After driving on the highway, or idling for 5 mins it creeps up the the temp shown below (it never reads any higher than this)




While driving around and sitting at lights it stays closer to the midpoint between 180 and 210. The only logical thing that I feel could be causing this is the placement of my temp sensor. I have it in a stance waterneck adapter (see gold metal plate below). This puts the sensor DIRECTLY on top of the exhaust manifold. Do you guys think this could cause this high reading?





I recently purchased installed an autometer water temp gauge and I wanted to get opinions on my readings:

Sitting at Idle: 185-195
Driving in normal city traffic: 180-183
Highway driving; 200-210

Setup:
OEM Thermostat
CX racing Radiator
2 generic electric fans with shroud
Fresh coolant

I have the gauge installed in a stance water neck adapter which is directly in front of the exhaust manifold, so I'm wondering if that could be causing the temps to be a bit high?

I also do all of my highway driving at 70+ mph because the speed limit on the interstate I take to work is 70. Do you guys think that the high temps on the highway could be due to lack of airflow to the rad? I'm wondering if the high speed + my front mount could be directly clean air away from the radiator. Just a thought though. What do you guys think about these numbers considering where my temp probe is located?

Any help would be greatly appreciated