it hasnt gone any higher yet , all i have done is drive around town , it is a 93 , standard tranny , i cant seem to get it higher than 500-600 F , when i put the dennyT stage2 fuel pin in will it make it go higher ? , I've heard people say that they keep it at 1200

 

1200 would be floored for alot of people. Mine stays between 450-650 without my foot in it, and 700-900 on hills and high speed driving.

 

,mine goes to 600 floored , is it cuz i put the probe by the turbo and it isnt an accurate reading ?

 

By floored I think he means loaded and pulling hard.
An empty truck just being pushed hard is not going to raise the temperature much unless there is something wrong with it.
The idea of the pyro is to let you know when you are approaching temperatures that will do damage to your engine and to change your driving style to lower the temperature.

 

What he said....Hell, Diablo, (my black 91 D350 Dually with turned up pump, injectors, reground cam, o-ringed head, HX35hybrid/45 dual, propane injected, cryo2 sprayed intercooler, 3.5 custom gearset, alum. wheels, 255-75r 16's), going uphill, 30' gooseneck weighing 12k, I'm close in at about 1300 before my spray kicks in to cool things down a little....
If your running pretty good, don't have a big load on her, thats pretty normal.....

Location of your thermocouple has a big role to play. I catch my exhaust temp. in my exhaust manifold, and at the bottlenecks just before the turbos, thats why I run 4 temp. gauges, looking at exhaust temps.

Just before the bottleneck will average out your heat reading, but close to a individual stream by each exhaust port will give you the individual cylinders temp.
I like to look at both since I build these beasts.