OMG, I don't know which is worse: your '63 Volvo 544 or the 1973 Ford Pinto Wagon with the "woodsides"on it with the 2300 I4 from a 1972 Mercury Capri in it.
We drove some real crap-boxes, you and I!! LOL!!
The Volvo was dual carb and made it to 350K miles. 😀