I have a 96 auto with 3.55's. Getting between 12.5 to 13 mpg. What I've done > Cold air intake,factory exhaust (no muffler),20 degrees of timing,4K rpm kit, star wheel all the way in,#6 fuel plate, AFC Housing slid forward< Any suggestions would be greatly appreciated. I pull a light load weekly and then occasionally heavy load.

 

no idea i have about the same mods a little bit more agressive and i get 16 to 18 mpg

 

Turn the star wheel back it doesn't do anything except waste fuell