I have brass floats and I have talked to one of he Holley Carb guys. The brass floats will not stay sealed for forty years. What they think is the floats are sinking into the bowl.
I will have to do a rebuild. I used the brass to run juice without melting the plastic floats.
Well, I see that happens. Steve, carbs are pricy these days, a couple of bills will get you the overhaul kit.
Warren, you had a wonderful shot as a jab and you didn't take it, there is hope for you yet.
Yup Ron, the floats and PV are suspect.