Need help please

ASSISTANCE Forced Induction
1

Well I was driving my car the other day just seeing how it was running on a basemap. I then got on it up to about 5000 rpm and it busted up like it was detonating. I got off it but it was missing when it was idling and under a load like a hill. Checked all the plugs but it was still missing on the #1 cylinder, so I thought it was ethier the headgasket or the valve. After taking the head off I really dont see anything wrong with either. Let me know if anyone else has had this problem or if you know what this is.

Thanks

2

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