1973 Plymouth Scamp accelerating/braking issues, please help

Here's an update guys!
So I tuned up the car, replaced points/plugs, got it timed, replaced the carb with a nice rebuilt Holley 1920, replaced the vacuum hose, and fired her up. I'm sorry this is so brief but I'm eager to get to my next issue.. Once I finished she fired right up, I took her for a 15 minute spin to get the engined warmed up enough to adjust the carb. Adjusted the carb and continued to drive her around to check for any other issues.

The car started to idle really rough after 15 minute of driving then started stalling. I talked to my old man and did a little research in the forums and narrowed down the tough idle and stalling to the ignition coil. From what I've picked up they share similar symptoms.

So this morning I replaced the ignition coil with a BWD E30 Ignition Coil Part #E30 SKU:9790777 and started the car, she started strong and right away and off we went. I tried everything I could to make it stall again and couldn't. She was running very nice!! On my way home she started idling rough again, and stalled on me a couple of times. I made it home just fine. I'm doing a bit more research now and can't find anything.. Wondering if you guys have any advice.

I apologize for my lack of proper terminology and detail. I'm learning as I go along.

Thanks