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I have a 1997 Ford crew cab dually, 7.3l with a Banks turbo/stinger and a Banks "calibration chip" installed. The truck seems to run great, but I am concerned about the exhaust temperature, (after the turbo). I was pulling my toy hauler to Bishop CA, very slight grade the whole way, and when I would hit grades a bit steeper the truck would have all the pull needed, but the temp would rocket up as high as 1200, then I would back out of it or it would have kept going. The result would be 50 mph to hold it around 1000. Is this normal? What good is all this torque if I can't use it? Could the part. trap be partially plugged?