73 left me stranded

Not sure where this is supposed to be posted, fuel or electrical. On my way home today, my 73 318 dart swinger hesitated when turning a corner. pull up to the stop light and idle started to get low and rough, hesitating, hiccuping, stalled! on the way to work there was no problem. the only difference i can notice is now the motor feels like its turning over more easy. only starts when pushing gas pedal down while turning over. starts but soon idles rough and process repeats. now when i accelerate, the alternator gauge will rise with rpms and get lower as rpms decrease due to rough idle. long story short, waited for the tow truck, towed home and dropped, soon as the tow left, she fired within the first few rotations. shut off and started again a few minutes later.turned around to pull it in the gate and it died as i got to the gate. started again and pulled in to park.

Details: 73 318 2bbl auto. distributer replaced months prior due to lack of advance diaphragm and jumping 2 teeth. pretty much stock as can be.

what do you all think the problem could be? i apologize if this is long.