Well I got a bit of news on my problem and this is probably the whole reason I am even having a problem. I took off a valve cover to check valve lash and Much to my surprise it was full of roller rockers. Worse yet for a truck it has solid roller lifters. I hate to even guess the lift on the cam. It has to be huge being solid and roller. Oh well, No harm done. I will swap it all out with one of the extreme 4x4 cams as soon as I can make up my mind wich one. Any suggestions? I need pulling power not top end nascar type performance. I have two draft mules weighing almost 2000 pounds each and a fairly large goose neck trailer I need to pull with this thing. At least the next hot rod car I get I will already have some new performance parts saved up.