Manual Heater Hose Valve

i removed all that stuff from my car when i swapped out the slant and now trying to figure out how to make my heat work those few times a year i need to more defrost my windows versus heat my car. i can push/pull the rods to make it switch to where iwantit to blow but without vacuum after awhile they go back to their original positions.

and then there is the whole " it wont get up to temperature" problem which is another whole issues and i hope when i swap in the 360 it will run more than 100 degrees lol