How do i make my mopar a daily driver??

Hello mopar guys!
I have a 360 in my 69 dart it was in an 84 D150 before. What do you think is the most important parts for making it a daily driver/make it more reliable? I was thinking about an EFI system, but which one? is there options to make a carburator just as reliable? I live in norway so i have very rough weather from time to time, from 14 F to 70 F temp weather in the summer..
Sounds like North Carolina winters. You want to know how to make a carburetor just as reliable as fuel injection? Take the time to set the choke correctly and then drive it every single day.

Seriously that's it.

Take it from somone who's done it. The more frequently you drive old cars, the better they run. When you let them sit and drive them once or twice in a several week period you begin to have all kinds of driveability problems as well as age related (usually electrical) issues crop up.