I have been trying to fine tune my truck for good power and good mpg. I have a ats 3000 turbo, 4k springs, ddp 75 inj, afc mods, 181 dv's, 16.5 timing, #5 plate, cold air, 4" exh,. The problem is my mpg is around 14-15. I was wondering if I moved my plate back a little if I could gain some mpg...