Quote Originally Posted by jabaker01
Finally got my 5.0 Ranger to the track last night and it ran like a raped ape until I got to the 1/8th mile timer. The engine seems to have a valve clatter and there is engine vibration. A friend thinks I bent a valve pushrod or cracked a valve spring. I have spark to the cylinder. Before I start ripping the old girl apart, any thoughts?
This happened to me when I was using stock "budget" rockers.I had pop the pocket out of one of the rockers where the push rod sits.No one can say what it is at this point ,it could be anything.
Keep all your parts in order ,and INSPECT every piece.You can find signs of things not working correctly.