I just ordered up some SS brake lines and some 3/8" SS fuel lines for my 71 cuda build. I am running a stroker 520 cu in with 6bbl carbs. My question is about the fuel sending unit and fuel pump. I currently have a stock type mechanical fuel pump to run the motor on the dyno. The 3/8" lines are on the way. I do not have a return line, and I do not think the 6bbl ever came with one. I am looking at SS sending units, and most come with a 1/4" return line. Do I need to buy a single outlet, or just get the 3/8" outlet with a return line, and just cap the return line? It is not out of the question that the car may end up with a FI system some day, and that will need a return line. I am also concerned about the stock mechanical pump keeping up with the fuel demand. Will it be an issue with the larger diameter line? Do I need a higher flow fuel pump? Suggestions? Experience? thanks guys. J
