AC/Heat not working properly and vacuum problem

As stated in title if I have it set to feet only it comes out of the front and defrost vents also.. I know there is vacuum lines but the kid I bought the car from apparently didn't no much and has things rigged etc so I need to find out the answer for this and if possible anyone knows the vacuum line sizes and lengths.. Thanks guys!

a top the sc is a tree with 3 vac ports, one to the brake booster, one to the boost solenoid, and the 3 rd is the hvac vac line, it runs to the fire wall, then to the pass side fender, down under the fuse box where it could T ( some have a T some dont, if you have a T one side runs across the front rad support to a vac ball. the other side merges with a loom of wires under the fuse box then runs into the cab of the car.

if you pull the pass side carpet up you'll find the vac line coming in the car and follow it to the box it plugs into.

see the line to the fire wall?

Yea I actually cracked the line in half it's hard and I moved it a little and it snapped I had to rig something.. I wanted to redo the vacuum lines anyways but I can't find out what the sizes are from anyone.. but I have to look under windshield washer fluid / fuse box area when I get time and see if it's messed up there if not then in the car

Take your broken piece into the parts store. Problem solved.