Hello all ,new to the forum excited to try to start learning about something out of my comfort zone. My daughter has been saving for her first car for a couple years and she chose a 72 dart this is out of my comfort zone because all I’ve had for the last 35 years are Chevy square body’s. All that to say I’m super excited about this project that her and I can work on. The first items we are going to order is pertronix ignition and wires and cap. The car is in pretty good shape as it was always here in Montana one thing thst is baffling me is when you start it it will sit there and purr like a kitten idling then 5-10 min it will shut off cold. Might of had water in the gas and the tank was almost empty when I got it put non ethanol premium in it when we picked it up. Any suggestions on the shutting off problem?