Idle shake

Assuming the PCV is hooked up correctly and working, and all the air that the engine is seeing, is coming in thru the primaries past the throttle-blades, and that the VA is on the spark-port,

Just put the timing down to in the window of 10>14* and readjust the idle speed to 750 in Neutral; then reset the mixture screws as may be necessary.
If the exhaust gets stinky just bring in some bypass air.
If it still clunks; retard the timing or turn the idle-speed down.
After you get this done, you will need to vizit the Power-Timing.
Your cam is not a big deal. and once you get the idle worked out, she'll be a fun lil rocket.

Don't let tuning scare you.
I once had a 292/292/108 cam with 76* of overlap.
That thing ran just fine at 5* advance/550rpm in gear and pulling itself
across the concrete parking lot, at 930 ft elevation. (manual trans)

BTW
I don't hear anything wrong with your idle except maybe a lil fueling error on the transfers to mixture screw balance. Sounds pretty good out the back, too.
But, Ima thinking the engine is a wee bit noisy. Sorta like it has solid lifters. If so, than my first move would be to check the lash.
If not solids, I'd pop the VCs and check the rocker arm to retainer clearance and pushrod to tunnel clearance. etcetera. Cuz on my laptop it is quite noizy.