hose on carb vent tubes

[fryedaddy]

what is the reason or purpose of putting a hose from the front vent tube to the back tube,and does it help.

[BattlestarGalactic]

Fuel slosh.  Though if you keep your float levels in check it should not be a problem.   Though, like they use them in boats for controlling fuel if a float sticks.   They want the fuel to run down inside the engine instead of pouring over it and catching fire.  Could be either.

[thatdarncat]

Like Larry said, for fuel slosh. Drag cars that pull wheel stands in particular, but even a brief hard launch can send some fuel out the vent tube and into the carb causing a stumble. Make sure if you use the hose you cut a couple small holes in the top so it can still vent. You can add the Holley bowl "whistles" too if your carb doesn't already have them.