[RIGHT]Well I guess my luck was on a short run. Recently bought a 08 F250 Super Duty with the 6.4 Powerstroke. Its got 270K on it. Bone stock. It started running like crap last week- took it down to the local large car shop & they put the e-box on it. Codes coming up are fuel rail pressure sensor and the fuel pressure regulator. I understand the sensor is in the right valve cover. The shop,which I have been going to for 20 some odd years, said I should R&R the rockers while I'm in there. Any insight on this? I thought it was only the 6.0's that had valve train problems. Thanks