stallin problem, please confirm my diagnosis

[hewhoisknot]

i changed out hte stock intake for a dejon tool, afterwards the car idled really ruff and when in neutral would sometimes die, i looked over the car today and saw a dryrot crack i nthe bov return hose on the bov end, this will cause the car to stall right? also gettin harder and harder to get the car to start, same problem? vaccum used to be at 20 now flexing between 15-18. car is ruff but does not stall with clutch in...????? am i right in my synopsis

 

[5150DSM]

Replace the return line and everything should be fine. Most DSM's don't like to vent in draw-through set-ups.