My 68 firebird 400
the fuel sending unit has only one hose connection and the fuel pump has the inlet out and a assume a vent tube ..i caped the vent tub with a vacume rubber cap a few weeks ago and today it cam off and fuel was spraying out thank God this happened at start up in the garage I put a small hose with a bolt in it but it seems to sill be leaking anyone know what the problem is? the fuel pump is a month old....