Even for places that don't take reservations it's good practice to call ahead to let staff know you're coming with a large party. It will get the BOH ready for it.
THESE QUESTIONS SHOULD BE ANSWERED BY THE MANAGER AT THE RESTAURANT. WHY DON'T YOU JUST CALL THE RESTAURANT??
It would be best to call to see if they are still taking reservations. Some places are first come, first seated and the wait without a reservation could be as much as 2 hours if people really want to go there. I would think the best time that would be least busy would be late evening. Because it is a Sunday many places are busy after church and since this is Easter Sunday it will be busy for brunch as well. God bless you this Easter.
I'm not sure..but you can call them and ask to be sure if reservation is need it for that day...
I would say a few hours before you intend to get there.
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