Fuel mileage Help
 

I can't get any better mileage than 15 to 16. It dosen't seem to matter what I do I just get 15 to 16. I'm driving more for work and would like to get a little better mileage.

Here is what mods I have done:
Truck is 1995 12V auto tranny 3.5 gear rato
BAFH
4" exhaust
#10 plate in stock postion
Star wheel 2 clicks foward
valves adjusted in July of this year

I have run with out a plate and with a 100 plate and mileage didn't change.

I have 325 70 17 toyo AT put on a month ago and havn't noticed any change in mileage. (I do calculate the mileage correctly for the lager tires)

I do try to drive sensible and not have my foot in it all the time.

So what I'm I missing that would help the mileage?

could need some new injectors I just did a set 2 week ago on a truck that only got 15mpg. I had him take them to a pump shop and tested. all 6 were bad, we installed a fresh set of sticks and he told me 3 days ago he is now getting 18-19 but then some trucks and drivers seem to get what seem to be sucks for mpgs