Wish I would have seen Pennyman's reply before I did what I did. Well Lifters are still going @ it but truck has gained some power. I am thinking of replacing the head. But I think I need to get the head without Jet valves because I plan on putting on the Weber I bought 2 yrs ago. B4 I do anything I'm actually gonna have a buddy of mine check it out. He is really good with heads. I have read all the threads relating to adding a Electric fuel pump. So I have the general Idea what I have to do......