i have the hose out of the filter going out the back, so when the tank is down it's almost horizontal. between the tank and the tank's fuel outlet sort of thing. give it enough length to go back, bend down and around (near the suspension rocker) and back up to the vacuum tap. you can get spring type things to go around the outside of the hose to stop them kinking -
http://www.gates-unicoil.com/ - is one. or just a spring big enough to go over the tube.