Bank 1 Misfires; complete stall in 2-3 mins

[stuco]

2003 E53 M62 (170K miles)
Engine idles really rough for 2-3 minutes before completely stalling.

Background: I just replaced timing chain, guides and cover gaskets using 3 sources and meticously validated timing and torques. Car ran well for a week although a little lumpy at idle.

One morning on startup, it idled really rough, brakes are stiff to press and SES light is flashing. Grabbed the 5 codes which indicated multiple misfires with fuel shutoff on cylinders 1-4 (P0363, P1343, P1345, P1347, P1349). I have the Diagnostic Report and a couple of short-lived logs from OBDFusion available at the following Dropbox link:
https://www.dropbox.com/sh/44qzf65rb...9w43Ra8ja?dl=0

So far, have switched and replaced Cam Position Sensors, replaced all spark plugs and tried spraying MAF cleaner in common points (intake boot, throttle body, both intake manifold, vacuum hoses) with no apparent change. Have not done a smoke test yet, because I am curious why it's reporting codes only on 1 bank.

Thanks in advance for the help, I just don't want to throw any more $$$ at the problem with guesses.

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