somethings not right here

I put this car back together last night. Replaced water pump with an 8 blade high volume pump. replaced the thermostat with a high volume 180* Milodon thermostat. Started it up this morning and ran it in the driveway for 30-40 minutes, just like before. Before the temp stayed at 190*. This morning it never ran over 180*. Here is the pic to show it. Now to be fair, I am going to drive this the same route this morning on the way up to the bowling alley and go through the same drive thru and see what it does. Only difference is that it is going to be 10* hotter outside than it was the last time. We will see if a high volume pump and thermostat makes a difference. You guys can decide for yourself. I have a 16" pusher fan coming in on Monday and I think I am going to install that also just as a precaution.

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