i just installed a JDM oil catch can, for my 5 plymouth neon SOHC. i connected it to my PCV valve, and then to PCV valve intake.; however, on top of can, thiers 2 port lines, one is a little farther form top of can adn the other is a ltlle closer to top of can, nearest the level guage. hwo do i know whihc is enter and exit.? no instructions cmae with package, plus i used vacumm line i had, for the intake valve. the clear line that was suplied with package, collapsed under suction. any ideas?