24-06-2018, 02:58 PM
Assume the impossible, the cams driving the valves on number 3 seem to give good valve lift ? The inlet manifold for 3 hasn't got a blockage like a dead mouse in it? The possibility that you have 2 cracked distributer caps. Can you turn the distributer thro 90 degrees and move the plug leads around and see if the problem moves to Number 1 or 4.