Bank1 shutdown

I did a head gasket change nothing crazy. After the head gasket change, she was alright, didn't drive much, had to leave for work using a different car. When I got back, she would barely idle, very rough idling, and backfiring. Backfiring caused catalytic converters to go literally blew them out the tail pipes. Cut the catalytic converters off and nothing inside, it blew the whole catalytic converters out. Replaced 02 sensors no change. Checked wiring and even added leads even though voltage was a cross everything and connection was good. The lead I added in for wiring and voltage just in case was to supply power straight to bank 1 and no change. Checked fuel injectors, spark plugs, and more can't completely remember all been working on the problem for a while now. When pulling spark plug wires which have been tested the coils try to spark to the ground but almost seems intermittent like somethings off, but when pulling spark plug wires and no longer giving spark to bank 1, no change. Bank 2 misfired immediately, bank 2 is working properly. Not sure what it is I've done vacuum leaks and everything I could think of. This week will be camshaft and crankshaft position sensor but I'm not too confident that it is the problem. Don't see camshaft sensor and crank shutting down just one side and not affecting the other. Any advice, help, or a solution would be helpful. Thanks, Will