You can do that and it will be fine although it won't be "show correct" for lack of a better term. I found a direct replacement with the correct fitting for the steel line that goes to the vapor canister. I think I found it at Rock Auto or PartsAmerica on the web. Maybe someone here has a better source. Anyway, with the stock type pump I have yet to run my carbs out of fuel. Of course being ex law enforcement I usually lift before I totally bury the speedo!