My carburetor keeps dumping gas

There is nothing wrong with epoxy on that plug. If you undo the crimp on the die cast to replace the o-ring on the aluminum plug, most likely there won’t be enough diecast left to recrimp. You can take out the N&S and clean up everything out real good and try it again. While there is almost no carb that can’t be made to run right, those spreadbores often prove to be more trouble than they are worth.

Yes there is. Look closely. That's the set screw and adjusting nut for the front float bowl that's been epoxied over. Look CLOSE. You can see the hex of the nut.

To the OP that carburetor is someone's factory Holley for a spread bore manifold. It's not an aftermarket replacement. It either came on a GM or Chrysler product, most likely Chrysler, since it has Chrysler throttle linkage. Find another carburetor. That one has very lean circuits. That coupled with the epoxy on the float adjuster and I say throw it in the trash.