Why Is My Car Backfiring Out Of The Exhaust?

[PJ]

Didn’t you say in your vid that you found a plug wire contacting the exhaust?  Are you positive the timing was the issue?  A shorted plug wire can damage a coil. Just a thought in case you start having other issues. Gotta keep the vette up and running for the next giveaway.
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Btw, I do NOT miss setting timing and potentially shocking the shit out of myself like back when I was 16/17.

Its possible but I don't think so.  They are pretty much brand new MSD wires so they don't have any cracks or wear to them... other than the spot that touched the header.  I taped it for now and re routed the wires with some wire separators to keep them away.  I'll have to see if its possible to buy 1 wire.  I hate to replace the entire set because of that one.  Anyway it was still popping after I did all that.  I was planning on replacing the coil because I felt like that was most reasonable but since adjusting the timing was free I did that first.  Drove for about an hour and it hasn't done it since.  Fingers crossed all is well.

The worst I ever got bit was reaching up under the dash while the Caprice was running and accidentally grabbing the wire going to the tach.  I don't remember what I was doing but I remember it lit me up pretty good.