alright after sitting there and studying the pump... there are three hose fittings on the right side of the engine as you are looking at it, the bottom is the fuel return from the top of the injectors to the filter, there is a rubber type of vent looking(very technical huh?) fitting above it, and finally another banjo fitting with a hose coming off of it. from what i have read the middle fitting is a vent, thats fine, but what is the top one? where does the hose route too? HELP!!! thanks!