2011 Speed 3 Cylinder 1 misfire

Hey guys! So ive been dealing with this misfire for a while now and cant seem to find whats causing it. Symptoms are lots of backfiring and hesitation under load about all rpms after 2000. We've checked coil packs, spark plugs, compression (which is good), mass airflow sensor, and swapped the battery. After we swapped the battery the proplem seemed to go away, the code even stopped appraring on the cobb. It idled a lot better sounded healthy however we then took it for a test drive and as soon as I got to about 2k rpms, it started hesitating and backfiring again. Currently have the valve cover off to check the timing chain but if anyone else has any recomendations for things to check that would be appreciated. Thanks!

 

There is a thread just above this one called "TROUBLESHOOTING SHEET" . Take a look and give us the rest of the information requested there.

Edit, just saw you are in the Chicagoland area, if you are looking for a reputable shop to work on Speeds let me know.

 

What are the spark plugs gapped at?

 

While we are on that topic, how many miles on these plugs?