Anyone ever turn an old Dart into an ultimate daily-driver?

I did it to a 74 duster this spring and drove it all summer till it snowed.But I have antique plates on it and cant legaly drive it nov till april. But it will be back out then.Its got a 318/904 combo and a average 24mpg on the hyway and 18mpg in town.The 318 is a 88 roler motor with a two barrel carb dam fun car.So yes it can be done. 8 mpg is really really bad mpg. unless its a dual quad 426 race hemi. then its good. lmao hit me up if you need help