Here is a formula I use for Butts:
40lbs raw butts = 20lbs. Cooked butts = 60 Pork Sammie’s (5oz.)
I would humbily suggest 50lbs. of ribs. Will not look good if you run out of grub!
Peace and Smoke,
My Weapons: Custom rig - Kandi, UDS; Bubba Keg; 22.5 WSM x 2; 18.5 WSM; BWS extended party; BWS Gator and an Onyx Oven; 29' ft Coachmen Leprechaun (Lola).
Dan Chambers get well soon, so we can tell you to "Shut up Chambers"