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Well I just got thru installing a new set of DAP 50hp Injectors. The whole process went well. The most fun was dealing #6 and to a lesser degree #5. I did go the extra mile on cleaning up the ends of the fuel lines after reading all that @hex0rz went thru. Used scotch brite pads to polish them up real good before re installing them. So far I have a little weeping, just enough to dampen the head at the injectors, but no leaks beyond that. I figure I am going to ride that out a little and see it goes away as in the past. As far as the injectors go, they run quieter and deliver a little more power than the RV's they replace. They are however smokier and a little hotter than the RV's. The only way to keep them from smoking is to turn the fuel level down on the comp to level 1. Thats on level 3 or 5 on the power setting. Not happy with that part. I have not had a chance to talk with DAP about that as of yet. Will do some time next week. I did replace my valve cover gasket as I suspected it was leaking on the rear of the head. It seems to have been the case since I let the truck idle for 20 minute or so with little oil hitting the ground. I will know better after going to work tomorrow. The old gasket had oil all over the outside of it at the back. One thing to add to this is if anyone is worried about running 2 stroke or bio fuel the old ones were just about as clean as the new ones except for the shiny metal on the new ones. The RV's had 150k on them. I will take some better pictures of them tomorrow. Cant get the camera to focus on them good tonight. v's