66’ drum bleeding

[Geno66]

Hello All- just found this forum. I have a 66 . Recently converted original MC / to failure.
While I get the pedal reconnected- lol. Can I just open all the lines / or one at a time? to bleed/ w gravity? Or is that a really bad idea? I’ve “heard “ people do it differently.
I already bench bled the new MC.

Mostly novice but I’ve bled my brakes on other vehicles-

Thanks a lot,
Gene

 

[GOvert]

Is that a stock single bowl master cylinder?