Same as me running 4.56's on 33's right now. I get around 16mpg

 

..... I get 14.. And im running 245's

 

I get about 21mpg highway with 31s and 3.55 I love it. Sure I might have to spin a little on the rocks but it's worth it. 4.10 and 33s would be slightly closer to stock gearing so I'm expecting about 20mpg and less wheel spin.

 

idk what im doing wrong

 

What do you mean? I get about 16mpg town. Volvo 746 injectors and everything else is stock in my '88.

 

Mine is bone stock engine wise. Running 32x11.5 with 3.55s and I always get in the 12-13mpg range. And I'm far from lead footed.

 

In a hilly environment? I would expect 14/18 if I was running stock gearing and 32/11.50

 

Mostly flat environment.

 

Hmm no idea then, sorry.

 

cause I get like 12-14 mpg

 

Well j was scrolling Craigslist and found a set of 76 f250 axles which are a 44 and 60 which is what I want but the front was closed knuckle which was a deal breaker. They were cheap too

 

Fuel injectors with nozzles with more holes help with combustion efficiency. Those Volvo injectors or the neon injectors are a common upgrade for fuel efficiency

 

I can turn! Cut the bottom piece of fender and cut and folded the fender pinch seem

 

well I put the mustang injectors in it

 

Do the injectors even make a difference