Temperature running a little to hot for comfort

Are you running a 195F thermostat if you are then it won't open until it reaches 195 and run above that , I see a 180F thermostat AC Delco #131-122 that should lower the temp 10 or so degrees

try and check the ground wire on back of the heads if not grounded it wil corrode cestom.

I have a 95 7.4 it runs at 200 an always that when new; took a trip back to little rock, got 13 to 15 mpg. at 65 mph.

i do believe that is normal for these trucks,how ever ya can try a diffrent thermostat i.e one that opens a bit early.a manual fan controller switch also great 4 a tow i've this set up and works great. good luck

Have the same issue with my 94' GMC 3500 7.4L dually. Acutally my gauge flucuates slightly up and down about 10-20 degrees which I've never seen before. I did buy a new thermostat 190 degree and I hope that will help. I plan on flushing out cooling system at the same time.

I just put a brand new rad,fan clutch,and thermo 160 in mine and it is running 200,I have 160,000 on it and I pull a 28 foot toy box and I get 7-8 miles per ngallon