99 v10 f350 stumbling when cold and on acceleration
 

I have a 99 f350 whith a v10 i have changed all egr and all plugs and coils but the motor still acts like its missing but it dont always do it and there are no codes no check engine light but occasionally the truck will spit sputter and act like it wants to die than it will run fine than start doing it again please if anybody has any ideas let me know