Here we see the cause of the issue from Part 1 (which is here: • DIY Backfire, Exhaust Popping, Power ... )
The video showing diagnosis and replacement of the other cylinder head that had the spring failure a couple years ago is here: https://schrodingersboxqm.com/uhohb...
Get your Schrodinger's Box merch here: https://schrodingersbox.creatorspri...