First you need to determine if you have a manual petcock with shut off valve or a vacume operated fuel pump. Look under the fueltank for this. If you have 2 lines comming from the tank then you have a vacume operated fuel pump. The top hose goes to the carb fuel feed line the bottom goes to vacume off manifold. If you have a manual petcock off the tank or just a fuel nipple then disreguard the vacume to tank. On the right side of the carb just forward the throttle linkage there is an air bleed which most cvk carbs use an external vacume source which will require vacume to it. If both the tank and airbleed are supplied with vacume then vacume comes off the intake manifold and using a vacume T to route one hose to pump and other to air bleed. The hose off top of valve cover is just routed toward back of engine for this is the crankcase vent hose. There is a short turn down hose on right of carb this is a fuel bowl vent then there is a hose off the bottom of fuel bowl this is just for draining the fuel bowl.
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