Im not sure but i have a feeling that was dirrected to me so if it was then MAF tuned and would keep it this way, alot of maf resolution left for me to warrant switching to a SD tune

 

The new style MAFs have a pretty ridiculous scale on them, so the only real limitation would be its accuracy when airflow pushes up into the 80+ lb/min range. Reason I ask is with a MAF, the DynCylAir is found using DynAir as a constant. With an SD tune, DynAir is a calculation based on DynCylAir, which is determined by your calibration. So there is a lot of room for error here. But since you are MAF tuned, I would have to say the blower manifold is the limitation. So yeah, best bet is to drop the rear end gear ratio a bit... That tighter converter will help as well.

 

Not to trough the subject off but If ur gettin rid of 4.10s n lookin 2 sell them let me no i wudnt mind some gud used ones.

 

He's in Dubai. Shipping probably wouldnt be cheap.

 

 

What size tire are you using? Any room to go taller? A 2" taller tire will give you approximately the same effective gear as swapping in 3.73. Four tires has to be more economical than two sets of gears.

 

i just swapped four tires and am running 285/50 r20, with my 2" drop in the front and the SS bumper its now rubbing the inner fender well on full turns

the previous tire however was 295/45 and I could feel a difference with this one, not sure how much taller this one is however.

I already have the 3.73's, Just need to get them on the truck probably next week. Lots of parts so im trying to prioritize and not mess things up.