I think it stock timing.

It 15,000 miles old on 351W it was remanufactured Ford engine.

95 F250 XL 4x4 with 4.10 gear. E40D. It have 77,400 miles.

I am get 9.56 mpg that is fake due idle high and transmission won't shift 3 or 4 plus late shift. Now I think I get 12-13 mpg by judge fuel gauge.


I don't tow very much but I do plow lot. Would 12-14 timing be ok?

 

stock is 10, you should be ok with 12

 

You can't use the fuel gauge to calculate milage so any number you get with that is no better than a wild guess. Shifting problems with an E4OD truck is often VSS or TPS related, if you pulled the codes you would know what the problem is. The motor may tolerate 12-14deg advance but fix your sensor problem first and don't forget to pull the spout plug when setting the timing.

 

Shift issues was cheap auto zone spark plugs wires cause it.

I been drive 97 F250 so it get worst mpg than this one.


I got 130 miles out 13.5 gal that was close to E that was issues with IDLE and transmission. Now it have 65 miles but it still say before Half tank more close to F.