Well I pulled the 4bbl manifold off of the 350 V8 engine after seeing that the lifter I kept tightening to stop the tapping noise did not have the same action as the others rocker arms. Much less up and down motion that the others. I used a 1 lb of force magnet to pull out the lifter and the bottom of the lifter was bowl shaped on the bottom, not flat, like it should be, which means the cam is probably almost round and has very little hump to push up the lifter....no telling what caused this but I bought the truck off a car lot and the heads had just been redone so maybe the rocker arm was set too tight from the start???? So new cams and new lifters all around would be the ticket I guess? THANKS FOR EVERONES HELP AND SUGGESTIONS...IT IS APPRECIATED!!!!
Thanks,
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