Check out Quadrajetparts online - they offer all pertinent parts, plus a pretty unique way to seal the well plugs I had not seen before. Pretty inexpensive and simple to do - positive, permanent sealing for the secondary well plugs. Read the tech article in the website for the procedure.
I've found my 7029202 carb has been Helicoiled on the inlet in the past - evidently a poor job, so it leaks no matter how tight I've gotten the connection, or with a liberal dose of Permatex #2. These guys offer the services to Helicoil the inlet and machine the gasket surface, and pressure check the repair to make sure it seals. After struggling with this for a couple of weekends, I think it's gonna make the trip to NJ for a hopeful repair.