foiling

I'm smoking 2 Boston butts this weekend and the recipe I'm following says to smoke 'em to 165, then foil 'em, then put them back in until they hit 200. Any theories how long going from 165 to 200 in the foil might take? I'm trying to figure out my schedule... Thanks in advance!

Hello everyone! It's my first time posting, but I've been reading a lot on this site for the past few months and just finished painting my own mini WSM today! It was a really fun and easy project, but I'm sure it'll be even more fun to cook with and have some amazing meals. I'd really like to...