I did a set of Champions and and the OmniSpark Wires (stock O’Reilly’s version) on my first engine. Ran fine no issues.
However, I burn through spark plug wires on my new engine. It has a set of Gibson headers, with Champion plugs. The headers get too hot that it slowly melts the wire and you eventually get a misfire. I tried expensive thicker wires that have a higher heat tolerance. I just throw my money away with that. I just buy stockers now, and wrap them in heat tape, and then put a heat sleeve over that, and then a heat tape on top of that. That seems to last the longest now.
What actual error codes are you throwing? That would be helpful in actually trouble shooting the issue and not just throwing wires and new plugs at it.
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Jeff Sears