Who else ever felt this way?

My Scamp was an slant six car and I pulled it out for a 440 six pack, and as fun as the 440 is I wish I would not done the conversion, the Scamp was as you described just a sweet running, quiet, mostly original car.
I did the same with no regrets but I do miss how nice and smooth my Slant ran and shifted. It was always a pleasure to drive.