OK well I got the new motor in and vacuum filling the coolant and it will not take a vacuum from what I can tell I hear air whistling from the weap hole when the vacuum bleeds off.... is this normal. there is no heater core, i have brand new hoses and all new gaskets, I dont suspect the radiator, so not sure if the pump is shot and the weep hole is bleed off the pressure?
sbc350
sbc350