Hello,
When I added a Perry Pump to my Saito 1.20 , I took the line from the muffler and ran it through a tiny "eye" bolt on the bottom of the fuse. This keeps the line secure. I was concerned about it siphoning fuel but it doesn't seem to be the case. I removed my muffler and just ran the header part of the pipe. Not sure if I picked up any by removing the muffler but it sure sounds better (no noise restrictions at the field). The engine used to run REALLY lean before the pump. One of the best purchases I've made this year...