Picked up this Big Boy yesterday.

I have a big open filter 6623 or some number, I forget, Baby Swamps injectors, 3 inch down and full 4 inch exhaust no muffler. TS six position tuner, 3.55 gears. 17 around town 20-21 mpg interstate, and about 14 towing my 24 ft inclosed.

320 hp and 740 tq at the rear tires.  I love the truck, it runs great, and pulls awesome.

It's a  1997 F250, Single Wheel, 4x4, Four door, short bed, 5 speed.