[Shainer]

Need a new VP44. Your fuel pressure needs to be 10-20psi

 

[Gameover]

BTW I RAN 85 mph @ 2200rpm 150 miles non stop and got 16.85 MPG..150miles/8.9gal

On the way home I ran 75MPH @2000 RPM 150 miles non stop and got 18.98 MPG..
157miles/8.27gal

Hand calculated..

I filled up before I left, when I left, and when I got home..

Does this really sound like a truck that needs a VP?

 

[Shainer]

yes. you need a new IP, and a good LP. End of story. You can get a price quote in the vendor section.