I'm usually in the 14-16 range in the city and 18-20 on the highway even with a 3200 stall. But if you have a heavy foot like most of us guys you better get ready to get your butthole puckered at the gas station. But then again why would someone put a procharger on if you worried about feathering the gas all the time.

 

Your right 5.0 eater. I run the guts out of it most of the time but 15.3mpg highway driving for 400 miles seems on the low side. It seems some guys are getting much better and others just arent. Who the hell knows.lol

What is PE?

 

I have a 07 nbs rcsb 6.0 camed procharged d1 l92 heads drived 300 miles and got home on 1/2 a tank

 

O and 3.73 gears

 

I think a whole lot of the mpg depends on the temp. I just had mine dynoed and drove 300 miles back home (cool weather in L.A.) and got 19.6 - then a few weeks later the temp rose about 15degrees hotter drove 300 miles up north and got 16.0 all at the same speed (70-75mph) Also SD tuned. Dynoed at 540hp and 595ft.lb. @10psi of boost

 

Thanks guys!

 

9-10.5 city, about 14-15 on the highway.. 3200 verter, 10psi, 410's with 29 inch tall tires

 

Your mileage doesnt seem too bad, youre heavy, big motor and awd.

PE=Power Enrichment

 

True that to all of the above! Thanks for the info on PE.