1994 F-350 7.3 rough running

[don-ohio]

Hi,EVERYONE!! I'm brand new here!
My brother is a concrete contractor and he likes to use his f-350 dump truck
for many things.
I just saw him at a NAPA a while ago and he asked me about why a 7.3 would run like half the injectors aren't working? Heck,I didn't know,but I found this great forum!
It may run fine for 5 min. and then bad for 25 min.Gets 35 mph tops!
ANYONE out there have a similar problem or maybe a solution?
I have to get to bed here soon, as I'm tearing out my retaining wall tomorrow,and I'll need to rest my old body.LOL!
Thanks for any answers! don-ohio (:^)

[don-ohio]

I'm gonna keep checking back here for an answer......I've been outside the last few days tearing down and rebuiding a retaining wall.
My 918 Allis Chalmers with a very good 2800 in-line 6 cyl. diesel has really helped in the heavy work.Ha! don-ohio (:^)