I have a 2003 f350 I bought a couple months ago and am now having problems with. It has egr delete, edge programmer, heads studded, and some others stuff. My issue started about 3 weeks ago. In the morning when I would warm it up it would start fine but soon began to surge while in the drive outside temp between 36 and 40f. It would surge for about 7-8 min and then be fine. It drove normal except when you would slowly speed up to 70mph then the truck would buck, shimmy, shake, and die unless I let off the pedal. When falling below 65 or 60 mph it would drive back to normal. When approaching 70 it would be gain to buck. Now when I drive it and it's up hill no trailer just driving it would shut down. Under heavy excelleration it drives fine and will go bryond 80. At low rpm 1900 to 2000 rpm at 70 it's buck time. I looked at tons of posts and everyone said injector and use rev-x. Since rev-x it no longer surges but still wants to buck at 65-70mph. I have also replaced the blue spring upgrade and changed fuel filters due to it acting like someone cut off the fuel. My edge programmer gives me a p0148 fuel delivery error and a p1000 fault need more driving time for further codes. I'm at a loss. I'm not sure really where to look. Any help would be greatly appreciated.