[Excaliber]

One of the things I've found on older Holleys is; it's real easy to strip one or more of the four bolts/screws holding the fuel bowls to the main body of the carb. What I do is tighten them 'just enough' to feel good and I EXPECT them to leak a little when the carb starts to fill with fuel. At that point if they DO leak I tighten them up 'just enough' to stop the leak. Then keep an eye on them for a few days to make sure you got them just tight enough, but no more! New gaskets on the fuel bowls can be purchased separatly and is really worth the money if it helps to avoid stripping those bolts/screws!

Sounds like a complete rebuild kit might be the way to go on yours from the description of the PV.