Trying to find any information on my car and 340 engine

Maybe because of tire size, 215/70R???
Not much of a height difference compared to the 195/75R14 on my car. As long you are not out of downward travel or badly bottoming out during normal driving then leave the ride height alone if you like the look. It's a sweet looking car and if everything is put together well then it shoudl be good.