vacuum diagram for 292

[292cclb]

hey everyone, i have a 77 chevy crew cab with a 292 1bbl. i had the carb rebuilt a couple months ago, not sure if it was done right. has'nt been running right since.i was wondering if anyone happened to know where the vac. line from dist. to the carb goes on the carb? it wants to run rough when first starting it up and then smooths out. also when i get it up to 50-60mph and let off the gas it just slows down fast. don't know if any of this has to do w/ vacuum or maybe timing. sorry so long, any help would be appreciated. thanks