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does the engine light stay on?if so,can you give me the computer codes?
so you have a miss-fire on just about all cylenders
did you install new plug wires?
ok..you have a miss-fire on about all cylinders..
so,,first check the compression on those cylenders,,if the compression is good now..replace those plug wires
these wires can give a fit,,and there is no good way to test them
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ok,,t is missfiring[according to the codes
the compression seems fine
clean those plugs and replace the wires
i understand they will have a good spark,
these will jump a spark from te boots to the head,,and may not be noticable
the odds are,they have never been replaced
there is no good way to test those wires sense you can not duplicate the high voltage
the compression seems fine,i would think you checked the valves while the head was off
and,we are getting the ignition multi miss-fire codes
the valves,,that is correct,,thats why think it is an electrical ignition problem
replace the wires