Strong blue spark don't mean chit!!! Its mandatory you use a GM HEI spark tester are equivalent its the LAW!!!...
If the coil has white dust on the side trash it and replace it with a new coil. AC Delco caps/rotors only from the dealer not a Denso that describes it as a OEM manufacture AC Delco ONLY!!!
So far you have gave great info your spark is still suspect till you eliminate it with a spark tester for the application... That holds true for all ignition systems GM is the worst of the bunch get a spark tester confirm proper spark life will be good...
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Today's Featured Article - Threshin Demonstration - by Michael Delaney. Introduction I bring you greetings from Prince Edward Island, Canada. We are Canada�s smallest province but big on farming. Maybe you�ve heard of us. Potatoes are our biggest crop. However, there is lots of mixed farming here also. I have a small mixed farm with 25-30 cattle. I make very good use of old machinery. I have a 135 MF Diesel, Farmall H and 1/3 share in an Allis B. I have complete lines of tillage and harvest equipment, and a saw gear etc. I have everything one would
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