
The sound is definitely from the right side of the engine, if it was bearing related I would guess it would come from the center of the engine, equally strong on both sides.
I know my suggestion is band aid, but my hope is to get it running, so I can fix all the other things on this car. And if it's bearing related, maybe a new crate engine would be easier?
I won't be able to analyze this further for the next several days as I had to dismantle the carb and I'm waiting for parts...