use some T's to save hose and space, both carb lines= 1, rear diff. and brake= 1, fan and front diff.= 1.
do not run ur 2 carb vents together. they have 2 different functions and if there ran together its not good. one is vacuum and the other is ur overflow on ur carb.
both of the lines that come off my carb are teed together into one hose. These are both vents, the overflow comes from the bowl on the carb and the vacuum is the line that goies into your breather box. Leave the one in your breather box and use a golf tee as suggested above for the overflow but the 2 other lines are both vents and can be vented together