That carb is black. That’s a reversion issue. Did you degree the cam? I had to ask but that’s bad.
Also, if it has so much fuel going through the engine that it blows out of the plug holes, you need to get some fuel out of it pronto. You’re killing the rings.
A 72 jet doesn’t sound outrageous but it’s getting fuel somewhere.
I can’t hear what you’re hearing but being pig rich will make them pop and bang and miss.
