I got a left side petcock tank on purpose. Can't belive Honda ever put it on the right! Must have wanted to stay away from the choke, but what a PIA to turn to reserve, letting go of throttle.
AS to the single, my carbs only have single so stright shot. VM29s.
But before, I had a 2 tit valve and the 1 inlet 29s I just used a T as mentioned.