Won’t idle after new muffler

Just did a few odds and ends to the dart. New muffler, spark plugs, plug wires, fuel filter, air cleaner, adjusted valve lash, changed oil, added some coolant.

Ran fine yesterday, zero issue. Go to take a drive tonight and it will barely idle then dies. Then gas leaks out from the bottom of the carb onto the intake manifold.

Going to start re-tuning the carb and see what that does but figured I would post up and hopefully get some tips. Thanks in advance for any help!