I have a 1978 Ford F150 Custom with a 351M, CA Emissions and I am searching for a hose that comes off of the carb to a valve before heading down to the vapor cannister. It is my understand this is a vent for the fuel bowl.

If anyone knows where I might be able to get this hose I would appreciate it or have a work around it would help. The hose is tapered small to large as you can tell in the picture

I have attached a picture for reference.

 

just get some fuel safe hosing from the parts store. the part that you see intersecting the hose is a check valve, allows the fuel to go one way (away from the carb)