Fuel Filter Empty

If it's the non crimped round one with the Allen bolts holding the upper and lower together, yes, it is repairable. Crimp is a throw away. What carb is this? Carter won't lose fuel unless it's boiling it out, very common without a phenolic/wood/plastic spacer. Neither will a holley but those bowls are more insulated from the intake heat. Both (all) carbs use engine vacuum to pull fuel out the bowls. None have a built in drain 'cept the TQ with bad jet O-rings. I finally went to a carter electric in my 65 cartered 340 as the bowls would be dry every morning. 5 seconds of pumping and the bowls would be full and the car would start under 1 revolution. I'm sure it was heat soak caused as I never had driveability issues.