Originally Posted by Meats12
I just recently bought a 1983 4x4 with a 460 engine. I heard I could increase mpg with headers and a new exhaust system. Is this true? And if so how much mpg could I get for a reasonable price. Also if there are any other tips or affordable ways I can besides laying off the pedal that would be great. Thanks!
I read posts like this all the time, all of which are a study in futility.
There's nothing one can do to increase city MPG, if you want better hiway MPG, slow down.
The MPG difference between 55 MPH & 75 MPH is a whopping 40%.
It amazes me that people buy full sized pickups, then complain about the MPG.