I'm 1 1/8 turns into my high speed needle and I've got temps in the low 270's with the body off??

How far into the high speed adjustment do you guys get before you start going over 250??

Outside temperature while running was in the mid to upper 70's? I'm just on the 9th tank of fuel since taking it outta the box (first 4 tanks were break in). Is this characteristic of new trucks, or should I back off the high speed setting? I'm running the glow plug that came in it.