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?
all of the above or, stuck valve, stuck lifter maybe, if you shut it down soon enough it might not be too bad.