Okay so on here I see that everyone moves the pump 1/8in. to advance the pump and they use a strap or something to do so. My buddy says he just turned a stud with a lock nut on the back side of the pump closest to the cab to advance his timing . Does that do the same thing as what everyone else does?

 

Sounds more like the fuel screw.

 

I agree with 9mm

 

ok. Yeah i talked to him about it and it wasn't the timing screw.