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I have a miss fire on #1 cylinder that has been kicking my butt. I have swapped plugs, swapped wires, cap and rotor look good. It has the newer style spider injectors that I installed a few years ago. I did an injector balance test and only have 1lb of pressure drop difference between the highest to lowest injector. Fuel pressure is 55psi and holds the pressure at 55psi for over 30min. I did a smoke test to check for leaks and I don't see any leak near the #1 port. Anyone have anything suggestions that might help?