Backfires at 4k

[French-connection]

Any chance that you cross fire through the wires?
Maybe they deteriorated in storage and aren’t insulating correctly.
If they’re crossed it could happen at high rpm.

 

[DREWS94]

Well my buddy had some scanner that could self test stuff and it did not see the ignition!So maybe I should step back and look into that first. I appreciate all the help

 

[lvwill]

I know it's been a while, but did you figure out what the problem was?