350 motor in dually gas mileage?

i just sold the big block and tranny in my dually and im plannin on puttin a 350 fuel injected tuned port with a 700r in it. does anyone have a dually any year with a 350 on here ? if so wat kind of mileage do you get with this big ass truck

hit up http://www.duallyscene.net they'll know

thats what chase did in the red and black/army green dually. He took out the 454 and put in a vortech 350 and 4L80E tranny...

u wont care about gas mileage if ur laying door!