Thanks for the reply, as for the transmission fluid in the oil, I was meaning someone might have put trans fluid in it to clean out the engine which is a commonly known trick at least in my area. Coolant is Green, I'd NEVER run anything else!
I do plan on putting on an electric fan, I have a couple laying around from older cars, but I'd prefer to stick with ones that came with a Toyota due to their known reliable electronics. The highest I have had my temp empty is 202F which is the same as when I had the fan on it engine.
The supercharger was designed by toyota's racing division (TRD) and the supercharger is a bolt on option that gives 75hp increase, headers, 7th injector etc are other mods that can be done that also increase power output, but headers lower low end grunt a bit, so I'd be sticking with the stockers.
Front calipers could be hanging up, I haven't had much time to dig into it. I just picked up another parts truck with manual lockouts, so most of the front end parts are going to be swapped out when I get some more time
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Speaking of that, picked up a 1999 tacoma, base model, automatic 2.7L for parts (was hit in the rear by a beat truck). I was pressed for time, so going the ~100 miles I was speeding a little and got 18mpg empty (65 highway, 60 back roads). With the truck on the back I got 15.4mpg going 45-50mph back roads and 55 highway.