went over the truck again and found that the fuel tank may not have had a good seal around the cover.I adjusted the oring and it's a much more positive seal.not sure yet if it was the problem with tuning consistency.I haven't had the oppurtunity to run it again as the weather has been terrible.I staightened around the temp probe and really don't pay much attention to temps unless they approach 260+.I'll hopefully get a chance to run it again today.