my new project is one of those pressure to vacuum conversions. It seems someone before tried and gave up. Anyway it has what appears t be an electric pump with a hose going to a nipple behind the carb. Theres a line coming from the sediment bulb to the carb bowl which I assume is right . and then it has a little impulse pump hanging by itself with an in and a out. Heres the tricky part , I located where somebody had drilled to mount an impulse jump to the crankcase like I have see on youtube with bolt holes on either side to mount it . My question , can I cap the two nipples behind the carb and mount a impulse pump where they had intended to and make it a one line motpr again ? I see no use for the electric pump or what it even does