I also have a power conditioner but maybe it has less to strain out at night. I don’t know. But There is probably more to it also. IE, even though I am retired I find it hard to get into listening during the day. I feel like I need to be accomplishing something. And there is plenty to do. So I can’t really put myself fully into it. I am a big believer that mood may be the #1 determining factor in listening pleasure. At least for me.
As for the car running better, I was 16 yr old & had a 58 ford w a 312 Tbird engine. The nice thing about that car was that it has a scoop built into the center of the hood which they placed a Ford emblem. I knocked that emblem out and put screen wire in it so that I had cold air induction almost straight into the carb. I think that made the difference. I know she would eat 283 Chevy’s up. Fun days living in my ignorant bliss 😀